Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-h2wf-967x-gxvw
Advisory ID github_osv/GHSA-h2wf-967x-gxvw
Aliases CVE-2026-62944
Summary MantisBT: Stored XSS in print_all_bug_page_word.php 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.
Status Published
Exploitability 0.5
Weighted Severity 7.7
Risk 3.9
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
System Score Found at
cvssv4 8.6 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-h2wf-967x-gxvw/GHSA-h2wf-967x-gxvw.json
generic_textual HIGH
Reference id Reference type URL
https://github.com/mantisbt/mantisbt
https://github.com/mantisbt/mantisbt/commit/bdd0e364f62759de272dfd4c89b4f51d27be9daa
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-h2wf-967x-gxvw
https://mantisbt.org/bugs/view.php?id=37234
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-h2wf-967x-gxvw/GHSA-h2wf-967x-gxvw.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.