Common Weakness Enumeration
CWE-1236
AllowedImproper Neutralization of Formula Elements in a CSV File
Abstraction: Base · Status: Incomplete
The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.
433 vulnerabilities reference this CWE, most recent first.
CVE-2026-100564 (GCVE-0-2026-100564)
Vulnerability from cvelistv5 – Published: 2026-09-26 02:18 – Updated: 2026-09-30 00:24
VLAI
EPSS
VEX
Title
OpenClaw before 2026.8.1 CSV Formula Injection via Attendance Export
Summary
OpenClaw versions before 2026.8.1 fail to neutralize spreadsheet formula characters in participant display names within attendance CSV exports. Attackers can inject formula-like cells that execute with spreadsheet user permissions when the export is opened in formula-enabled applications.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 00:24 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/openclaw-bef… | third-party-advisory |
Impacted products
Date Public
2026-09-11 00:00
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CVE-2026-100563 (GCVE-0-2026-100563)
Vulnerability from cvelistv5 – Published: 2026-09-26 02:18 – Updated: 2026-09-26 02:18
VLAI
EPSS
VEX
Title
OpenClaw before 2026.8.1 CSV Formula Injection via Session Labels
Summary
OpenClaw (npm package `openclaw`) before 2026.8.1 does not neutralize leading characters that spreadsheet applications interpret as formulas when the Control UI exports session data to CSV. Although session labels were quoted as CSV text, a lower-trust participant who can influence a session label or the first user message can place a formula-like cell in the Usage export; if an operator opens that export in a spreadsheet application with formula evaluation enabled, the cell may be evaluated with the permissions of the spreadsheet user. OpenClaw itself does not evaluate the formula, and practical impact depends on the spreadsheet application's security settings. The issue is fixed in 2026.8.1.
Severity
5.4 (Medium)
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/openclaw-bef… | third-party-advisory |
Impacted products
Date Public
2026-09-11 00:00
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CVE-2026-89246 (GCVE-0-2026-89246)
Vulnerability from cvelistv5 – Published: 2026-09-11 11:15 – Updated: 2026-09-11 18:20
VLAI
EPSS
VEX
Title
WWBN AVideo CSV Formula Injection via myComments.download.php
Summary
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a CSV formula injection vulnerability in the myComments.download.php endpoint that fails to sanitize spreadsheet formula prefixes in comment text. Authenticated users can inject formulas starting with =, +, -, or @ characters that execute when administrators or video owners open the exported CSV file in spreadsheet applications.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 18:20 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/WWBN/AVideo/security/advisorie… | vendor-advisory |
| https://www.vulncheck.com/advisories/wwbn-avideo-… | third-party-advisory |
Impacted products
Date Public
2026-08-27 00:00
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CVE-2026-86745 (GCVE-0-2026-86745)
Vulnerability from cvelistv5 – Published: 2026-09-09 13:32 – Updated: 2026-09-14 13:20
VLAI
EPSS
VEX
Title
Snipe-IT before 8.7.0 CSV Formula Injection via Location-Scoping Export
Summary
Snipe-IT is an IT asset management application. In Snipe-IT master-branch builds after 8.6.3 (the code was never included in a tagged release), SettingsController::downloadLocationScopingReport streams the FMCS location-scoping mismatch report (GET /admin/settings/location-scoping-report.csv) through a bare fputcsv() call without applying League\Csv\EscapeFormula, unlike the other CSV exports which honor config('app.escape_formulas'). An authenticated user with ordinary create/edit rights can place a spreadsheet formula in free-text fields that appear in the report (item name, asset tag, serial, item or location company name, location name) and arrange for the record to be FMCS-mismatched so it is included in the export. When a superuser downloads the report and opens it in Excel, LibreOffice Calc, or Google Sheets with formula evaluation enabled and external-content warnings dismissed or disabled, cells beginning with =, +, -, @, tab, or CR are executed in the victim's spreadsheet context, enabling data exfiltration (e.g., HYPERLINK/WEBSERVICE) or, on Windows Excel, legacy DDE command execution. This issue is fixed in version 8.7.0.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 13:20 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/grokability/snipe-it/security/… | vendor-advisory |
| https://www.vulncheck.com/advisories/snipe-it-bef… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| grokability | snipe-it |
Affected:
0 , < 8.7.0
(semver)
Unaffected: 8.7.0 (semver) cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:* |
Date Public
2026-08-24 00:00
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CVE-2026-86742 (GCVE-0-2026-86742)
Vulnerability from cvelistv5 – Published: 2026-09-09 13:32 – Updated: 2026-09-10 14:57
VLAI
EPSS
VEX
Title
Snipe-IT before 8.7.0 CSV Formula Injection via Asset Acceptance Report
Summary
Snipe-IT through 8.6.3 does not neutralize formula elements in the "unaccepted assets" acceptance report CSV export. ReportsController::postAssetAcceptanceReport builds the CSV by hand (stripping commas and joining rows manually) and, unlike the six sibling exports in the same controller, never applies League\Csv\EscapeFormula or honors the config('app.escape_formulas') setting. An authenticated low-privilege user with ordinary create/edit rights on any record whose free-text fields appear in the report (asset name/tag, company name, category, model, or assignee display name) can set such a field to a value beginning with =, +, -, @, tab, or CR. When a user with reports.view privileges requests the export (POST /reports/unaccepted_assets) for a pending checkout acceptance referencing the poisoned record and opens the resulting CSV in Excel, LibreOffice Calc, or Google Sheets, the injected content is evaluated as a formula in the downloader's spreadsheet context, enabling data exfiltration (e.g., HYPERLINK/WEBSERVICE) or, on legacy Windows Excel configurations, DDE command execution. Fixed in 8.7.0.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:18 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/grokability/snipe-it/security/… | vendor-advisory |
| https://github.com/grokability/snipe-it/commit/69… | patch |
| https://www.vulncheck.com/advisories/snipe-it-bef… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| grokability | snipe-it |
Affected:
0 , < 8.7.0
(semver)
Unaffected: 8.7.0 (semver) cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:* |
Date Public
2026-08-24 00:00
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CVE-2026-86257 (GCVE-0-2026-86257)
Vulnerability from cvelistv5 – Published: 2026-09-06 12:00 – Updated: 2026-09-08 15:10
VLAI
EPSS
VEX
Title
wger before 2.6 CSV Formula Injection via member export
Summary
wger before 2.6 fails to sanitize first_name and last_name fields in the gym member TSV export endpoint, allowing any gym member to inject spreadsheet formulas. Attackers can inject formulas like =HYPERLINK to exfiltrate admin data or execute code when admins open the exported file in Excel or LibreOffice Calc.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:09 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/wger-project/wger/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/wger-before-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wger-project | wger |
Affected:
0 , < 2.6
(custom)
Unaffected: 2.6 (custom) cpe:2.3:a:wger:wger:*:*:*:*:*:*:*:* |
Date Public
2026-04-28 00:00
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CVE-2026-79971 (GCVE-0-2026-79971)
Vulnerability from cvelistv5 – Published: 2026-09-09 13:06 – Updated: 2026-09-14 13:13
VLAI
EPSS
VEX
Summary
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Sanitization of Custom Special Characters vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to script injection.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 13:13 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-in/00050342… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Secure Connect Gateway 5.0 - Application |
Affected:
0 , < 5.36.00.00 or later
(semver)
|
|
| Dell | Secure Connect Gateway 5.0 - Appliance |
Affected:
0 , < 5.36.00.16 or later
(semver)
|
Date Public
2026-08-31 06:30
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CVE-2026-78209 (GCVE-0-2026-78209)
Vulnerability from cvelistv5 – Published: 2026-08-24 00:30 – Updated: 2026-08-29 11:47
VLAI
EPSS
VEX
Title
exceljs through 4.4.0 CSV Formula Injection via Unescaped Cell Values
Summary
exceljs through 4.4.0 fails to neutralize leading equals, plus, minus, or at signs in cell values written to CSV output. Attackers who can influence exported cell values can inject formulas that execute when the CSV file is opened in a spreadsheet application, potentially exfiltrating data or performing other malicious actions.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 18:02 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/exceljs/exceljs | product |
| https://github.com/mateocallec/exceljs-hardened/s… | third-party-advisory |
| https://github.com/exceljs/exceljs/blob/v4.4.0/li… | technical-description |
| https://www.vulncheck.com/advisories/exceljs-thro… | third-party-advisory |
Impacted products
Date Public
2026-08-23 00:00
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CVE-2026-76797 (GCVE-0-2026-76797)
Vulnerability from cvelistv5 – Published: 2026-08-28 19:24 – Updated: 2026-08-31 18:43
VLAI
EPSS
VEX
Title
MongoSQL Transition Readiness Tool Improper Neutralization of Formula Elements in Generated Reports
Summary
The MongoSQL Transition Readiness Tool writes database and collection names into its generated CSV reports without neutralizing leading characters that spreadsheet applications treat as formulas. A user with write privileges on the cluster can choose a namespace name that is later evaluated as a formula when an operator opens the generated report in a spreadsheet application, which may result in unintended disclosure of report contents or execution of external content on the operator's workstation. Generating a report for the affected namespace and opening it in a spreadsheet application is required.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:43 UTC
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | BI Connector Transition Readiness Report |
Affected:
1.0.0 , < 1.1.3
(semver)
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CVE-2026-65875 (GCVE-0-2026-65875)
Vulnerability from cvelistv5 – Published: 2026-08-03 00:13 – Updated: 2026-08-03 14:58
VLAI
EPSS
VEX
Summary
BaserCMS provided by baserCMS Users Community contains a CSV file injection vulnerability. If a user downloads and opens a CSV file containing malicious code injected by an attacker, the malicious code may be executed.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 14:58 UTC
CWE
- CWE-1236 - Improper neutralization of formula elements in a CSV file
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| baserCMS Users Community | BaserCMS |
Affected:
0 , < 5.3.0
(semver)
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Mitigation
Implementation
When generating CSV output, ensure that formula-sensitive metacharacters are effectively escaped or removed from all data before storage in the resultant CSV. Risky characters include '=' (equal), '+' (plus), '-' (minus), and '@' (at).
Mitigation
Implementation
If a field starts with a formula character, prepend it with a ' (single apostrophe), which prevents Excel from executing the formula.
Mitigation
Architecture and Design
Certain implementations of spreadsheet software might disallow formulas from executing if the file is untrusted, or if the file is not authored by the current user.
No CAPEC attack patterns related to this CWE.