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Vulnerability record · CVE-2025-47776 · published 4 November 2025

CVE-2025-47776: Mantisbt vulnerability

Mantisbt · Mantisbt

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.

8.8 CVSS 4.0 High EPSS 0.32% · top 77.3% CWE-305 · CWE-305
8.8CVSS 4.0 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/mantisbt/mantisbt/commit/966554a19cf1bdbcfbfb3004766979faa748f9a2 Patch
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-4v8w-gg5j-ph37 Issue TrackingMitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.6CVE-2019-15074Mantisbt cross-site scripting vulnerabilityThe Timeline feature in my_view_page.php in MantisBT through 2.21.1 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbi…EPSS 2.1%9.3CVE-2026-30849Mantisbt vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. Versions prior to 2.28.1 running on MySQL family databases are affected by an authenti…EPSS 2.4%8.8CVE-2017-7615MantisBT weak password reset allows unauthenticated admin accessMantisBT through 2.3.0 mishandles password reset confirmation, allowing an attacker to supply an empty confirm_hash value to verify.php. This permits…EPSS 91%analysed8.6CVE-2026-33517Mantisbt cross-site scripting vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, when deleting a Tag (tag_delete.php), improper escaping of its name…EPSS 0.35%8.6CVE-2026-33548Mantisbt cross-site scripting vulnerabilityMantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, improper escaping of tag names retrieved from History in Timeline (…EPSS 0.29%8.3CVE-2024-23830Mantisbt injection vulnerabilityMantisBT is an open source issue tracker. Prior to version 2.26.1, an unauthenticated attacker who knows a user's email address and username can hija…EPSS 0.96%8.1CVE-2009-20001Mantisbt insufficient session expiration vulnerabilityAn issue was discovered in MantisBT before 2.24.5. It associates a unique cookie string with each user. This string is not reset upon logout (i.e., t…EPSS 0.87%7.8CVE-2021-43257Mantisbt csv injection vulnerabilityLack of Neutralization of Formula Elements in the CSV API of MantisBT before 2.25.3 allows an unprivileged attacker to execute code or gain access to…EPSS 0.98%

Source: NIST National Vulnerability Database (record CVE-2025-47776), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.