VulnSocial

CVE-2026-40598Disclosure

LOWCVSS 6.9 · MEDIUM

Signal is active with 2 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. In versions 2.28.1 and below, improper escaping of the redirection page (retrieved from the request's Referer header) allows an attacker to inject HTML. While this is generally not directly actionable as modern browsers will URL-encode special characters, on some specific server configurations this could poison the cache, leading to cross-site scripting. This issue has been fixed in version 2.28.2.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

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

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-05-23)
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-05-12: 1Mentions · 2026-05-23: 2Technical Details · 2026-05-12: 1Technical Details · 2026-05-23: 205-1205-23
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-121
Disclosure1
2026-05-232
Disclosure2
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-40598 Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page (retrieved from the request's R… https://www.cve.org/CVERecord?id=CVE-2026-40598 ----- Traducción: CVE-2026-40598 Man… http://infoflow.cloud`

    Post summary

    The tweet discloses CVE‑2026‑40598, a redirect‑escaping flaw in MantisBT v2.28.1 and earlier, but does not provide any PoC, exploit code, patch, or evidence of active exploitation.

    0000044
    79 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-40598 Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page (retrieved from the request's R… https://www.cve.org/CVERecord?id=CVE-2026-40598

    Post summary

    An announcement of CVE-2026-40598, describing that MantisBT versions 2.28.1 and earlier are vulnerable due to improper escaping of redirect pages; no PoC, exploit, or patch details are provided.

    00000210
    57.5K followersView on X
  • DailyCVE@dailycve
    Disclosure

    🟠 MantisBT, Referer-Based Reflected #HTML Injection / XSS, #CVE-2026-40598 (Moderate) https://dailycve.com/mantisbt-referer-based-reflected-html-injection-xss-cve-2026-40598-moderate/

    Post summary

    A new moderate‑severity referer‑based reflected XSS vulnerability (CVE‑2026‑40598) affecting MantisBT has been disclosed.

    0000049
    203 followersView on X

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