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MantisBT lacks verification when changing a user's email address

Moderate severity GitHub Reviewed Published Nov 1, 2025 in mantisbt/mantisbt • Updated Nov 4, 2025

Package

composer mantisbt/mantisbt (Composer)

Affected versions

< 2.27.2

Patched versions

2.27.2

Description

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.

References

@dregad dregad published to mantisbt/mantisbt Nov 1, 2025
Published to the GitHub Advisory Database Nov 3, 2025
Reviewed Nov 3, 2025
Published by the National Vulnerability Database Nov 4, 2025
Last updated Nov 4, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(1st percentile)

Weaknesses

Insertion of Sensitive Information Into Sent Data

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor. Learn more on MITRE.

Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. Learn more on MITRE.

CVE ID

CVE-2025-55155

GHSA ID

GHSA-q747-c74m-69pr

Source code

Credits

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