CVE-2019-15539 json
MantisBT XSS when uploading an attachment
published 2020-03-19 6 y ago modified 2026-06-17 4 mo ago also GHSA-p495-jrpq-p66g , EUVD-2019-6522
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
The proj_doc_edit_page.php Project Documentation feature in MantisBT before 2.21.3 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed when editing the document's page.
Patch / fix
- packagist mantisbt/mantisbt 2.21.3
- mantisbt mantisbt 2.21.3
Exploit prediction
1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | mantisbt/mantisbt | <2.21.3 |
2.21.3 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/mantisbt/mantisbt/commit/bd094dede74ff6e313e286e949e2387233a96eea
web, patch, third-party-advisory
-
mantisbt.org
/bugs/view.php?id=26078
web, permissions-required, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-15539
advisory
-
github.com
/mantisbt/mantisbt
package
Sources
- CVE List CVE-2019-15539
- GitHub Advisory GHSA-p495-jrpq-p66g
- NVD CVE-2019-15539
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.