CVE-2026-44657

7.5 highEPSS 0.3%

High (7.5). EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

7.5 high

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-05-28
Modified: 2026-07-21
Record from: the NVD, synced 2026-10-19

References

https://github.com/mantisbt/mantisbt/commit/26647b2e68ba30b9d7987d4e03d7a16416684bc2
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-p6fr-rxq7-xcg8
https://mantisbt.org/bugs/view.php?id=37020

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