CVE-2026-3213 Anti-Spam by CleanTalk - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-014

Medium 4.7 Published Updated

An attacker can inject malicious scripts into web pages via the CleanTalk anti-spam module, potentially compromising user sessions.

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-2026-3213?

CVE-2026-3213 is a medium-severity cross-site scripting vulnerability in Drupal Anti-Spam by CleanTalk, published on 25 Mar 2026. 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 Anti-Spam by CleanTalk allows Cross-Site Scripting (XSS).This issue affects Anti-Spam by CleanTalk: from 0.0.0 before 9.7.0.

Weakness: CWE-79

Which versions are affected by CVE-2026-3213?

It affects 1 product.

Linux distribution packages (1)
drupal/cleantalk Packagist:https://packages.drupal.org/8All versions9.7.0

Products include Cleantalk Anti-Spam.

How do I fix CVE-2026-3213?

Upgrade to a fixed version.

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-2026-3213 being exploited?

There is no known exploitation of CVE-2026-3213 in the wild and no public exploit code.

Sources

Also known as DRUPAL-CONTRIB-2026-014, GHSA-65g6-ww7v-9mhx.

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