PT-2026-60367 · Packagist · Mantisbt/Mantisbt

CVE-2026-52847

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Publicado

2026-07-15

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Atualizado

2026-07-15

CVSS v4.0

9.2

Crítica

VetorAV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
MantisBT 2.28.3 and earlier contains six reflected XSS injection points in /admin/install.php. User-supplied parameters are echoed into HTML without escaping via print test result(). No authentication is required.
A Content Security Policy (script-src 'self') prevents inline JavaScript execution, but the CSP is missing a form-action directive, allowing exploitation via credential-phishing form injection and open redirects.

Impact

  • Credential phishing: Attacker crafts a URL that renders a fake login form on the real MantisBT admin page. Admin credentials are submitted to an attacker-controlled server.
  • Open redirect: Victim is silently redirected to a phishing or malware site.
  • UI manipulation: CSS injection can hide legitimate page content and overlay attacker-controlled HTML, enabling social engineering.

Patches

Workarounds

Remove the /admin directory, as [recommended in the Admin Guide](https://mantisbt.org/docs/master/en-US/Admin Guide/html-desktop/#admin.install.postcommon)

Resources

Credits

McCaulay Hudson (@ McCaulay) of watchTowr

Correção

XSS

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Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-52847
GHSA-77X8-3V3H-HRHV

Produtos afetados

Mantisbt/Mantisbt