CVE-2025-46595: XSS
An XSS issue was discovered in the Flag module before 1.x-3.6.2 for Backdrop CMS. Flag is a module that allows flags to be added to nodes, comments, users, and any other type of entity. It doesn't verify flag links before performing the flag action, or verify that the response returned was provided by the flag module. This can allow crafted HTML to result in Cross Site Scripting. This is mitigated by the fact that an attacker must have a role with permission to create links on the website, for example: create or edit comments or content with a filtered text format.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-46595?
CVE-2025-46595 has a medium severity due to its potential for cross-site scripting (XSS) exploits.
How do I fix CVE-2025-46595?
To fix CVE-2025-46595, upgrade the Backdrop CMS Flag module to version 1.x-3.6.2 or later.
What impacts does CVE-2025-46595 have on Backdrop CMS?
CVE-2025-46595 allows attackers to execute arbitrary JavaScript in the context of a user's session through unverified flag actions.
Who is affected by CVE-2025-46595?
Any Backdrop CMS instance using the Flag module prior to version 1.x-3.6.2 is affected by CVE-2025-46595.
Is CVE-2025-46595 actively being exploited in the wild?
As of now, there are no reported instances of active exploitation specifically targeting CVE-2025-46595.