CVE-2020-25288

4.8 mediumEPSS 1.5%

Medium (4.8) in mantisbt mantisbt. EPSS 1.5% chance of exploitation in the next 30 days.

An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.

Severity

CVSS 3.1

4.8 medium

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2020-09-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mantisbt:mantisbt

References

http://github.com/mantisbt/mantisbt/commit/221cf323f16a9738a5b27aaba94758f11281d85c
https://mantisbt.org/bugs/view.php?id=27275
http://github.com/mantisbt/mantisbt/commit/221cf323f16a9738a5b27aaba94758f11281d85c
https://mantisbt.org/bugs/view.php?id=27275

Check your stack JSON