CVE-2025-2524Public exploitNetwork attack vector

Administrator stored XSS via rich-text default value

Published May 19, 2025 · Updated Jan 9, 2026

Stored XSS in Ninja Forms before 3.10.1 allows remote authenticated users with administrator privileges to execute scripts in visitors' browsers. The Paragraph field's Default Value setting accepts HTML event handlers when Show Rich Text Editor is enabled and renders the value in an embedded form without adequate sanitization or output escaping. Administrator access and a visitor opening a page containing the form are required, and the flaw matters when unfiltered_html is disabled, including on multisite installations.

CVSS severity4.8
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Ninja Forms before 3.10.1 allows remote authenticated users with administrator privileges to execute scripts in visitors' browsers. The Paragraph field's Default Value setting accepts HTML event handlers when Show Rich Text Editor is enabled and renders the value in an embedded form without adequate sanitization or output escaping. Administrator access and a visitor opening a page containing the form are required, and the flaw matters when unfiltered_html is disabled, including on multisite installations.

The record

CVE
CVE-2025-2524
Published
May 19, 2025
Updated
Jan 9, 2026
Vendor
Saturday Drive
Product
Ninja Forms
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.10.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Saturday Drive · Ninja Formsversion=0 <3.10.1

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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