Is mantisbt/mantisbt affected by CVE-2026-40598?

Packagist mantisbt/mantisbt is affected in <2.28.2.

Is CVE-2026-40598 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.5%.

medium

CVE-2026-40598

Q: Is CVE-2026-40598 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.5%.

Packagist · mantisbt/mantisbt

Summary

MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page

Severity: medium
EPSS: 0.5% (p40)
Also known as: GHSA-6jh4-47v2-4g37
Published: 2026-05-11

References

Related advisories

CVE-2026-30849 — critical · Packagist/mantisbt/mantisbt
CVE-2026-44657 — high · Packagist/mantisbt/mantisbt
CVE-2026-44655 — high · Packagist/mantisbt/mantisbt
CVE-2026-42071 — high · Packagist/mantisbt/mantisbt
CVE-2026-40607 — high · Packagist/mantisbt/mantisbt
CVE-2026-40597 — high · Packagist/mantisbt/mantisbt
CVE-2026-40596 — high · Packagist/mantisbt/mantisbt
CVE-2026-34463 — high · Packagist/mantisbt/mantisbt

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.