CVE-2025-21610

Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Versions prior to 2.1.12 are vulnerable to cross-site scripting when pasting malicious code in the link field. An attacker could trick the user to copy&paste a malicious `javascript:` URL as a link that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed. Users should upgrade to Trix editor version 2.1.12 or later to receive a patch. In addition to upgrading, affected users can disallow browsers that don't support a Content Security Policy (CSP) as a workaround for this and other cross-site scripting vulnerabilities. Set CSP policies such as script-src 'self' to ensure that only scripts hosted on the same origin are executed, and explicitly prohibit inline scripts using script-src-elem.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8
https://github.com/basecamp/trix/commit/180c8d337f18e1569cea6ef29b4d03ffff5b5faa
https://github.com/basecamp/trix/commit/c4f0d6f80654603932af6685694f694e96593b93
https://github.com/basecamp/trix/security/advisories/GHSA-j386-3444-qgwg

Configurations

No configuration.

History

No history.

Information

Published : 2025-01-03 17:15

Updated : 2026-06-17 08:43

NVD link : CVE-2025-21610

Mitre link : CVE-2025-21610

CVE.ORG link : CVE-2025-21610

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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