Mantis Bug Tracker (MantisBT) is an open source issue tracker. Due to incorrect use of loose (==) instead of strict (===) comparison in the authentication code in versions 2.27.1 and below.PHP type juggling will cause certain MD5 hashes matching scientific notation to be interpreted as numbers. Instances using the MD5 login method allow an attacker who knows the victim's username and has access to an account with a password hash that evaluates to zero to log in without knowing the victim's actual password, by using any other password with a hash that also evaluates to zero This issue is fixed in version 2.27.2.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-4v8w-gg5j-ph37 | MantisBT vulnerable to authentication bypass for some passwords due to PHP type juggling |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 05 Nov 2025 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mantisbt
Mantisbt mantisbt |
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| Vendors & Products |
Mantisbt
Mantisbt mantisbt |
Tue, 04 Nov 2025 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mantis Bug Tracker (MantisBT) is an open source issue tracker. Due to incorrect use of loose (==) instead of strict (===) comparison in the authentication code in versions 2.27.1 and below.PHP type juggling will cause certain MD5 hashes matching scientific notation to be interpreted as numbers. Instances using the MD5 login method allow an attacker who knows the victim's username and has access to an account with a password hash that evaluates to zero to log in without knowing the victim's actual password, by using any other password with a hash that also evaluates to zero This issue is fixed in version 2.27.2. | |
| Title | MantisBT: Authentication bypass for some passwords due to PHP type juggling | |
| Weaknesses | CWE-305 | |
| References |
| |
| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-11-04T20:31:01.759Z
Reserved: 2025-05-09T19:49:35.620Z
Link: CVE-2025-47776
No data.
Status : Received
Published: 2025-11-04T21:15:37.367
Modified: 2025-11-04T21:15:37.367
Link: CVE-2025-47776
No data.
OpenCVE Enrichment
Updated: 2025-11-05T10:47:23Z
Github GHSA