CVE-2025-31697 Formatter Suite - Moderately critical - Cross site scripting - SA-CONTRIB-2025-026

Medium 6.1 Published Updated

An attacker can inject malicious scripts into web pages viewed by other users via the Formatter Suite module, potentially leading to session hijacking or data theft.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-31697?

CVE-2025-31697 is a medium-severity cross-site scripting vulnerability in Drupal Formatter Suite, published on 31 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Formatter Suite allows Cross-Site Scripting (XSS).This issue affects Formatter Suite: from 0.0.0 before 2.1.0.

Weakness: CWE-79

Which versions are affected by CVE-2025-31697?

2 open source packages ship an affected version, including drupal/formatter_suite. It affects 1 product.

PackageAffectedFixed in
drupal/formatter_suite PackagistAll versions2.1.0
drupal/formatter_suite PackagistAll versions2.1.0
Linux distribution packages (1)
drupal/formatter_suite Packagist:https://packages.drupal.org/8All versions2.1.0

Products include Formatter Suite Project Formatter Suite.

How do I fix CVE-2025-31697?

Upgrade drupal/formatter_suite to 2.1.0 or later.

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-2025-31697 being exploited?

There is no known exploitation of CVE-2025-31697 in the wild and no public exploit code.

Sources

Also known as DRUPAL-CONTRIB-2025-026, GHSA-5r66-vgc7-2mm3.

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