CVE-2025-55155 MantisBT: Authentication bypass for some passwords due to PHP type juggling

Medium 5.4 Published Updated

Attackers can cause information disclosure by triggering notifications to arbitrary email addresses due to lack of email validation during profile updates.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-55155?

CVE-2025-55155 is a medium-severity vulnerability in Mantisbt Mantisbt, published on 4 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.27.1 and below, when a user edits their profile to change their e-mail address, the system saves it without validating that it actually belongs to the user. This could result in storing an invalid email address, preventing the user from receiving system notifications. Notifications sent to another person's email address could lead to information disclosure. This issue is fixed in version 2.27.2.

Weakness: CWE-354, CWE-201

Which versions are affected by CVE-2025-55155?

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

PackageAffectedFixed in
mantisbt/mantisbt PackagistAll versions2.27.2
mantisbt/mantisbt PackagistAll versions2.27.2

Products include Mantisbt Mantisbt.

How do I fix CVE-2025-55155?

Upgrade mantisbt/mantisbt to 2.27.2 or later.

Is CVE-2025-55155 being exploited?

There is no known exploitation of CVE-2025-55155 in the wild and no public exploit code.

All Mantisbt Mantisbt vulnerabilities

Sources

Also known as GHSA-q747-c74m-69pr.

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