CVE-2018-9839 json
An issue was discovered in MantisBT through 1.3.14, and 2.0.0.
published 2019-06-06 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-21433
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
An issue was discovered in MantisBT through 1.3.14, and 2.0.0. Using a crafted request on bug_report_page.php (modifying the 'm_id' parameter), any user with REPORTER access or above is able to view any private issue's details (summary, description, steps to reproduce, additional information) when cloning it. By checking the 'Copy issue notes' and 'Copy attachments' checkboxes and completing the clone operation, this data also becomes public (except private notes).
Patch / fix
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- mantisbt.org https://mantisbt.org/bugs/view.php?id=24221 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/mantisbt/mantisbt/commit/1fbcd9bca2f2c77cb61624d36ddee4b3802c38ea
patch, third-party-advisory
-
mantisbt.org
/bugs/view.php?id=24221
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2018-9839
- NVD CVE-2018-9839
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.