CVE-2026-94504 (GCVE-0-2026-94504)

Vulnerability from cvelistv5 – Published: 2026-09-22 06:39 – Updated: 2026-09-22 14:13
VLAI Previdian
Title
Ninja Forms – The Contact Form Builder That Grows With You <= 3.15.3 - Stored Cross-Site Scripting
Summary
Ninja Forms 3.15.3 stores an anonymous non-RTE textarea value and renders it without safe HTML encoding in the legacy submission editor. An attacker can break out of the textarea with stored script. When an Administrator opens the attacker-known direct submission URL, the script runs in the WordPress admin origin.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:13 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2026-94504

Status: Confirmed

Status Updated: 2026-10-07 09:08 CEST

Exploited: Yes


Timestamps
First Seen: 2026-10-07
Asserted: 2026-10-07

Scope
Notes: Ninja Forms – The Contact Form Builder That Grows With You <= 3.15.3 - Stored Cross-Site Scripting | Affected: Kstover / Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder | CVSS: 7.2 (HIGH) | EPSS: 0.00412 | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian


Details
Feed Previdian (previdian.com)
Title Ninja Forms – The Contact Form Builder That Grows With You <= 3.15.3 - Stored Cross-Site Scripting
Cve Id CVE-2026-94504
Vendor Kstover
Ghsa Id None
Product Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder
Added Date 2026-10-07T07:08:00.000Z
Cvss Score 7.2
Epss Score 0.00412
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.33422
Used In Malware unknown
Vulnerability Id CVE-2026-94504
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

Created: 2026-10-09 06:43 CEST | Updated: 2026-10-09 06:43 CEST
Show details on NVD website

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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

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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.

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