CVE-2025-14556 XSS in Drupal 7 Flag Module
Cross-site scripting vulnerability in the Drupal Flag module allows attackers to inject malicious scripts, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-14556?
CVE-2025-14556 is a medium-severity cross-site scripting vulnerability in Drupal Flag, published on 14 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Drupal Flag allows Cross-Site Scripting (XSS).This issue affects Flag: from 7.X-3.0 through 7.X-3.9.
Weakness: CWE-79
Which versions are affected by CVE-2025-14556?
It affects 1 product.
Products include Flag Module Project Flag.
How do I fix CVE-2025-14556?
Apply the vendor's patch.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-14556 being exploited?
There is no known exploitation of CVE-2025-14556 in the wild and no public exploit code.
Other vulnerabilities in Drupal Flag
Sources
Also known as CLSA-2026-1789632791, GHSA-53jh-8vxh-rrrh.