CVE-2018-9839 Missing authorization in n/a
Authenticated users can view and expose private issue details by manipulating parameters during the clone operation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-9839?
CVE-2018-9839 is a medium-severity missing authorization vulnerability in Mantisbt Mantisbt, published on 6 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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).
Weakness: CWE-20
Which versions are affected by CVE-2018-9839?
It affects 1 product.
Products include Mantisbt Mantisbt.
How do I fix CVE-2018-9839?
No fix has been published for CVE-2018-9839 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-9839 being exploited?
There is no known exploitation of CVE-2018-9839 in the wild and no public exploit code.
Other vulnerabilities in Mantisbt Mantisbt
- CVE-2019-15074 MantisBT allows cross-site scripting (XSS) via crafted filename
- CVE-2026-30849 MantisBT SOAP API has an authentication bypass vulnerability on MySQL
- CVE-2025-47776 MantisBT: Authentication bypass for some passwords due to PHP type juggling
- CVE-2017-7615 MantisBT allows arbitrary password reset
- CVE-2026-33517 MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation
Sources
Also known as GHSA-w7gq-xmg2-xcrj.