CVE-2026-33402 SAK-52311: Sakai site-manage group titles can contain XSS content

Low 1.3 Published 26 Mar 2026 Updated 26 Mar 2026

Attackers can inject malicious scripts into Sakai group titles and descriptions, potentially compromising user sessions and data.

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: None listed

What is CVE-2026-33402?

CVE-2026-33402 is a low-severity cross-site scripting vulnerability in sakaiproject sakai, published on 26 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

Sakai is a Collaboration and Learning Environment (CLE). In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAI_SITE_GROUP table for titles and descriptions that contain this info.

Weakness: CWE-79

Which versions are affected by CVE-2026-33402?

It affects 1 product.

Products include Sakailms Sakai.

How do I fix CVE-2026-33402?

No fix has been published for CVE-2026-33402 yet. Limit exposure of the affected software until one is available.

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-2026-33402 being exploited?

There is no known exploitation of CVE-2026-33402 in the wild and no public exploit code.

Sources

Also known as GHSA-6g62-3898-hpvm.