PT-2025-17873 · Backdrop Cms · Flag

Tess + 1 · Published 2025-04-25 · Updated 2025-04-25 · CVE-2025-46595

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Backdrop CMS Flag module versions prior to 1.x-3.6.2

Description A Cross-Site Scripting issue was discovered in the Flag module for Backdrop CMS. The module does not verify flag links before performing the flag action, or verify that the response returned was provided by the flag module, allowing crafted HTML to result in Cross Site Scripting. This issue is mitigated by the fact that an attacker must have a role with permission to create links on the website.

Recommendations For Backdrop CMS Flag module versions prior to 1.x-3.6.2, update to version 1.x-3.6.2 or later to resolve the issue. As a temporary workaround, consider restricting the permission to create links on the website to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-46595

Affected Products

Flag

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-46595 · Security Note
• https://t.me/cvedetector/23726 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1915609461072265506 · Twitter Post
• https://t.me/cvenotify/119763 · Telegram Post
• https://twitter.com/CVEnew/status/1915614844461494610 · Twitter Post
• https://backdropcms.org/security/backdrop-sa-contrib-2025-011 · Note
• https://t.me/cvetracker/22342 · Telegram Post