CVE-2026-44657Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Prior to 2.28.2, using show_inline=1 parameter and a valid file_show_inline_token CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. This vulnerability is fixed in 2.28.2.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-05-11); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-05-11: 1Mentions · 2026-05-12: 1Technical Details · 2026-05-11: 1Technical Details · 2026-05-12: 105-1105-12
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • Vulert@vulert_official
    Disclosure

    🚨 Critical MantisBT Vulnerability — CVE-2026-44657 Attackers could exploit the file download functionality to execute malicious scripts ⚠️ 🔗 http://vulert.com/vuln-db/CVE-2026-44657 #CyberSecurity #MantisBT #StoredXSS #CVE2026 #DevSecOps #SecurityAlert https://t.co/2tGxNLZA6l

    Post summary

    A tweet alerts to a critical MantisBT vulnerability (CVE-2026-44657) that permits attackers to execute malicious scripts through the file download functionality, linking to a database entry for more details.

    0000027
    125 followersView on X
  • DailyCVE@dailycve
    Disclosure

    🔴 MantisBT, Stored XSS, #CVE-2026-44657 (High) https://dailycve.com/mantisbt-stored-xss-cve-2026-44657-high/

    Post summary

    A high‑severity Stored XSS vulnerability (CVE‑2026‑44657) has been disclosed in MantisBT, with no PoC, exploit code, patch, or evidence of active exploitation mentioned.

    0000037
    203 followersView on X

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