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Mantisbt CVE-2025-47776

HIGH
Authentication Bypass by Primary Weakness (CWE-305)
2025-11-04 security-advisories@github.com
8.8
CVSS 4.0 · GitHub Advisory
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Primary weakness mitigation
Impact

CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.10%.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Month Plan within 30 days. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

composer mantisbt/mantisbt fix: 2.27.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-305. 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. Affected products include: Mantisbt. Version information: version 2.27.2..

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Severity by source

GitHub Advisory PRIMARY 8.8 HIGH
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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
High
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch released
Mar 28, 2026 - 19:20 nvd
Patch available
CVE Published
Nov 04, 2025 - 21:15 nvd
HIGH 8.8

DescriptionGitHub Advisory

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.

Executive ViewAI

Why It Matters

Organizations using the authentication code in face significant risk from CVE-2025-47776 rated CVSS 8.8. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. A patch is available and should be applied as part of regular vulnerability management.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.1%
Top 72% exploitable

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:*
CVE-2017-7615 HIGH POC
8.8 Apr 16

MantisBT through 2.3.0 allows arbitrary password reset and unauthenticated admin access via an empty confirm_hash value

CVE-2014-7146 HIGH POC
7.5 Nov 18

The XmlImportExport plugin in MantisBT 1.2.17 and earlier allows remote attackers to execute arbitrary PHP code via a cr

CVE-2014-8598 MEDIUM POC
6.4 Nov 18

The XML Import/Export plugin in MantisBT 1.2.x does not restrict access, which allows remote attackers to (1) upload arb

CVE-2014-2238 MEDIUM POC
6.5 Mar 05

SQL injection vulnerability in the manage configuration page (adm_config_report.php) in MantisBT 1.2.13 through 1.2.16 a

CVE-2019-15074 CRITICAL POC
9.6 Aug 21

The Timeline feature in my_view_page.php in MantisBT through 2.21.1 has a stored cross-site scripting (XSS) vulnerabilit

CVE-2026-30849 CRITICAL POC
9.3 Mar 23

MantisBT versions prior to 2.28.1 contain an authentication bypass vulnerability in the SOAP API caused by improper type

CVE-2024-23830 HIGH POC
8.3 Feb 20

MantisBT is an open source issue tracker. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no

CVE-2012-2691 HIGH POC
7.5 Jun 17

The mc_issue_note_update function in the SOAP API in MantisBT before 1.2.11 does not properly check privileges, which al

CVE-2014-9280 HIGH POC
7.5 Dec 08

The current_user_get_bug_filter function in core/current_user_api.php in MantisBT before 1.2.18 allows remote attackers

CVE-2014-8554 HIGH POC
7.5 Nov 13

SQL injection vulnerability in the mc_project_get_attachments function in api/soap/mc_project_api.php in MantisBT before

CVE-2014-9089 HIGH POC
7.5 Nov 28

Multiple SQL injection vulnerabilities in view_all_bug_page.php in MantisBT before 1.2.18 allow remote attackers to exec

CVE-2014-1608 HIGH POC
7.5 Mar 18

SQL injection vulnerability in the mci_file_get function in api/soap/mc_file_api.php in MantisBT before 1.2.16 allows re

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