CVE-2020-25781 MantisBT unauthorized users able to access private files
Attackers can bypass access controls to download private attachments from issue notes in MantisBT by directly accessing file download URLs.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-25781?
CVE-2020-25781 is a medium-severity missing authorization vulnerability in Mantisbt Mantisbt, published on 30 Sep 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in file_download.php in MantisBT before 2.24.3. Users without access to view private issue notes are able to download the (supposedly private) attachments linked to these notes by accessing the corresponding file download URL directly.
Weakness: CWE-862
Which versions are affected by CVE-2020-25781?
2 open source packages ship an affected version, including mantisbt/mantisbt. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mantisbt/mantisbt Packagist | All versions | 2.24.3 |
mantisbt/mantisbt Packagist | All versions | 2.24.3 |
Products include Mantisbt Mantisbt.
How do I fix CVE-2020-25781?
Upgrade mantisbt/mantisbt to 2.24.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-25781 being exploited?
There is no known exploitation of CVE-2020-25781 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-xjmx-cprh-646r.