What is CVE-2009-2802?

CVE-2009-2802 is a medium-severity vulnerability in Mantisbt, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-11-09.

How severe is CVE-2009-2802?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Mantisbt

CVE-2009-2802

MantisBT 1.2.x before 1.2.2 insecurely handles attachments and MIME types. Arbitrary inline attachment rendering could lead to cross-domain scripting or other browser attacks.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-11-09 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Mantisbt

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-tracker.debian.org/tracker/CVE-2009-2802 (Third Party Advisory)
mantisbt.org/blog/archives/mantisbt/113 (Vendor Advisory)
mantisbt.org/bugs/view.php (Vendor Advisory)

Frequently asked questions

What is CVE-2009-2802?: CVE-2009-2802 is a medium-severity vulnerability in Mantisbt, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-11-09.
How severe is CVE-2009-2802?: Medium severity. CVSS v3 base score is 6.1 out of 10.