CVE-2026-87902 (GCVE-0-2026-87902)

Vulnerability from cvelistv5 – Published: 2026-09-22 16:44 – Updated: 2026-09-26 03:55
VLAI CISA ENISA Previdian
Summary
An unauthenticated attacker can make `get_page_template()` page-template resolution include a chosen readable local `.php` file outside the active theme directories. If relevant pre-conditions for both the server and the active theme are met, this can lead to RCE.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 00:00 UTC
CWE
  • CWE-98 - Remote File Inclusion
Assigner
References
Impacted products
Vendor Product Version
WordPress WordPress Affected: 0 , < 7.1.2 (semver)
Create a notification for this product.
Credits
Robert (ressl)
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 93a4ad62-bd25-4b55-94c0-caf1d56ab885

Vulnerability ID: CVE-2026-87902

Status: Confirmed

Status Updated: 2026-09-25 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2026-09-25
Asserted: 2026-09-25
Scope
Notes: WordPress Core Remote File Inclusion Vulnerability | Affected: WordPress / Core | Description: WordPress Core contains a remote file inclusion vulnerability which could allow an unauthenticated attacker to make page-template resolution include a chosen readable local `.php` file outside the active theme directories, leading to remote code execution. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-09-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-7hp8-65ch-5whp ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-87902
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-98
Feed CISA Known Exploited Vulnerabilities Catalog
Product Core
Due Date 2026-09-28
Date Added 2026-09-25
Vendorproject WordPress
Vulnerabilityname WordPress Core Remote File Inclusion Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
ENISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: b6fa4f50-8947-4fb1-bf3d-7687796314e4

Vulnerability ID: CVE-2026-87902

Status: Confirmed

Status Updated: 2026-09-23 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2026-09-23
Asserted: 2026-09-23
Scope
Notes: Affected: WordPress Foundation / WordPress | Description: The vulnerabilitycan be exploited by an attacker without login credentials to have a special file loaded outside the normal themes of WordPress. Active abuse has been observed. | Patched since: 2026/09/22 | Exploitation type: unknown | CWEs: CWE-98 | Origin source: NCSC-NL | Notes: https://www.ncsc.nl/alerts/kwetsbaarheid-in-wordpress-wordt-actief-misbruikt-update-nu
Evidence

Type: Csirt Report

Signal: Successful Exploitation

Confidence: 75%

Source: enisa-cnw-kev

Details
Cwes CWE-98
Euvd EUVD-2026-84555
Notes https://www.ncsc.nl/alerts/kwetsbaarheid-in-wordpress-wordt-actief-misbruikt-update-nu
Catalog ENISA / EU CSIRTs Network (CNW) KEV JSON
Product WordPress
Datereported 2026/09/23
Originsource NCSC-NL
Patchedsince 2026/09/22
Vendorproject WordPress Foundation
Exploitationtype unknown
Vulnerabilityname
Threatactorsexploiting
References
Created: 2026-10-02 08:52 CEST | Updated: 2026-10-02 08:52 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e42957dd-1421-4eca-b481-e204d5b6f1d0

Vulnerability ID: CVE-2026-87902

Status: Confirmed

Status Updated: 2026-09-23 14:53 CEST

Exploited: Yes

Timestamps
First Seen: 2026-09-23
Asserted: 2026-09-23
Scope
Notes: An unauthenticated attacker can make `get_page_template()` page-template resolution include a chosen readable local `.php` file outside the active... | Affected: WordPress / WordPress | CVSS: 8.1 (HIGH) | EPSS: 0.19756 | Used in malware: unknown | Listed 2 days ahead of CISA KEV | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title An unauthenticated attacker can make `get_page_template()` page-template resolution include a chosen readable local `.php` file outside the active...
Cve Id CVE-2026-87902
Vendor WordPress
Ghsa Id None
Product WordPress
Added Date 2026-09-23T12:53:51.266Z
Cvss Score 8.1
Epss Score 0.19756
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.97331
Used In Malware unknown
Vulnerability Id CVE-2026-87902
Ahead Of Cisa Kev 
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}
Not Yet In Cisa Kev False
References
Created: 2026-10-02 09:09 CEST | Updated: 2026-10-02 09:09 CEST
Show details on NVD website
To clipboard 

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                  "attackComplexity": "HIGH",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "HIGH",
                  "baseScore": 8.1,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-87902",
                    "options": [
                      {
                        "Exploitation": "active"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-25T19:40:04.026420Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              },
              {
                "other": {
                  "content": {
                    "dateAdded": "2026-09-25",
                    "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87902"
                  },
                  "type": "kev"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-22T16:57:19.735Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "third-party-advisory"
                ],
                "url": "https://patchstack.com/articles/cve-2026-87902-attackers-started-probing-wordpress-sites-hours-after-the-patch/"
              },
              {
                "tags": [
                  "government-resource"
                ],
                "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-87902"
              }
            ],
            "timeline": [
              {
                "lang": "en",
                "time": "2026-09-25T00:00:00.000Z",
                "value": "CVE-2026-87902 added to CISA KEV"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "WordPress",
              "vendor": "WordPress",
              "versions": [
                {
                  "lessThan": "7.1.2",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Robert (ressl)"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "An unauthenticated attacker can make `get_page_template()` page-template resolution include a chosen readable local `.php` file outside the active theme directories. If relevant pre-conditions for both the server and the active theme are met, this can lead to RCE."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-98",
                  "description": "CWE-98 Remote File Inclusion",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-22T16:44:15.048Z",
            "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
            "shortName": "hackerone"
          },
          "references": [
            {
              "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-7hp8-65ch-5whp"
            }
          ],
          "workarounds": [
            {
              "lang": "en",
              "value": "WordPress 7.1.2 has been released containing a fix for the vulnerability, and as a courtesy to users on older branches the fix has been backported to all branches back to 4.7."
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "assignerShortName": "hackerone",
        "cveId": "CVE-2026-87902",
        "datePublished": "2026-09-22T16:44:15.048Z",
        "dateReserved": "2026-09-09T15:00:00.574Z",
        "dateUpdated": "2026-09-26T03:55:51.560Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.