XSS in Mantisbt
CVE-2020-25830
An issue was discovered in MantisBT before 2.24.3. Improper escaping of a custom field's name allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript when attempting to update said custom field via bug_actiongroup_page.php.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
Weakness classification (CWE)
References
- mantisbt.org/bugs/view.php (Exploit, Patch, Vendor Advisory)
- github.com/mantisbt/mantisbt/commit/8c6f4d8859785b67fb80ac65100ac5259ed9237d (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25830?
- CVE-2020-25830 is a medium-severity vulnerability in Mantisbt, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-09-30.
- How severe is CVE-2020-25830?
- Medium severity. CVSS v3 base score is 4.8 out of 10.