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EUVD-2026-259902

fkie_cve-2025-55155

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.

GHSA-q747-c74m-69pr — MantisBT lacks verification when changing a user's email address

Affected: Packagist: mantisbt/mantisbt

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.

### Impact 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.

### Patches Fixed in 2.27.2.

### Workarounds None

### Credits

Thanks to @ncrcs for discovering and reporting the issue.