CVE-2025-27156 Tuleap allows content injection via emails sent by the mass emailing features

Medium 4.1 Published Updated

Attackers can inject malicious HTML into mass emails, facilitating phishing or exploiting mail client vulnerabilities in Tuleap.

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
None listed

What is CVE-2025-27156?

CVE-2025-27156 is a medium-severity cross-site scripting vulnerability in Enalean Tuleap, published on 4 Mar 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Tuleap is an Open Source Suite to improve management of software developments and collaboration. The mass emailing features do not sanitize the content of the HTML emails. A malicious user could use this issue to facilitate a phishing attempt or to indirectly exploit issues in the recipients mail clients. This vulnerability is fixed in Tuleap Community Edition 16.4.99.1740567344 and Tuleap Enterprise Edition 16.4-6 and 16.3-11.

Weakness: CWE-79

Which versions are affected by CVE-2025-27156?

It affects 1 product.

Products include Enalean Tuleap.

How do I fix CVE-2025-27156?

No fix has been published for CVE-2025-27156 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-2025-27156 being exploited?

There is no known exploitation of CVE-2025-27156 in the wild and no public exploit code.

All Enalean Tuleap vulnerabilities

Sources

Also known as GHSA-x2v2-xr59-c9cf.

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