CVE-2026-62944
Published:July 15, 2026
Updated:August 02, 2026
A missing output encoding call in print_all_bug_page_word.php allows any authenticated user to inject arbitrary HTML into an IMG tag's alt attribute via an image attachment with a crafted filename such as "probe." onload="alert(1)". When any user views the HTML export page (print_all_bug_page_word.php?type_page=html&export=1), the rendered IMG tag becomes "<img src="..." alt="" onload="alert(1)" />", breaking out of the alt attribute. Impact Cross-site scripting. Impact is limited by MantisBT's Content Security Policy. Patches - https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa Workarounds None Resources - https://mantisbt.org/bugs/view.php?id=37234 Credits MantisBT thanks the "Dracosec Research Limited" (https://dracosec.tech/) team (Chris Chan, Krecendo Hui, William Lam) for discovering and responsibly reporting the issue.
Affected Packages
https://github.com/mantisbt/mantisbt.git (GITHUB):
Affected version(s) >=release-2.3.0 <release-2.28.4Fix Suggestion:
Update to version release-2.28.4mantisbt/mantisbt (PHP):
Affected version(s) >=2.3.0 <2.28.4Fix Suggestion:
Update to version 2.28.4Related Resources (4)
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Contact UsCVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')