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CVE-2025-47776

MantisBT: Authentication bypass for some passwords due to PHP type juggling

Published: Nov 4, 2025Updated: Nov 10, 2025 Sources: CVE List NVD GHSACWE-305
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.3%
Top 79.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-305

Affected Products

mantisbtmantisbt
On-premWeb App
Enterprise Software / itsm-monitoring
mantisbt/mantisbtPackagistOSS Libraries
mantisbtoss-projectEnterprise Softwareaka mantis bt
packagistpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available
Workaround Available

References

https://github.com/mantisbt/mantisbt/security/advisories/GHSA-4v8w-gg5j-ph37
github.com
https://github.com/mantisbt/mantisbt/commit/966554a19cf1bdbcfbfb3004766979faa748f9a2
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-47776
nvd.nist.gov
and 3 more references View all →

Timeline

Published
Nov 4, 2025
Last Updated
Nov 10, 2025

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