CVE-2026-30849 MantisBT SOAP API has an authentication bypass vulnerability on MySQL
Attackers can bypass authentication in the SOAP API on MySQL backends to access user accounts and data without valid passwords.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-30849?
CVE-2026-30849 is a critical authentication bypass vulnerability in Mantisbt Mantisbt, published on 23 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions prior to 2.28.1 running on MySQL family databases are affected by an authentication bypass vulnerability in the SOAP API, as a result of an improper type checking on the password parameter. Other database backends are not affected, as they do not perform implicit type conversion from string to integer. Using a crafted SOAP envelope, an attacker knowing the victim's username is able to login to the SOAP API with their account without knowledge of the actual password, and execute any API function they have access to. Version 2.28.1 contains a patch. Disabling the SOAP API significantly reduces the risk, but still allows the attacker to retrieve user account information including email address and real name.
Weakness: CWE-305
Which versions are affected by CVE-2026-30849?
2 open source packages ship an affected version, including mantisbt/mantisbt. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mantisbt/mantisbt Packagist | All versions | 2.28.1 |
mantisbt/mantisbt Packagist | All versions | 2.28.1 |
Products include Mantisbt Mantisbt.
How do I fix CVE-2026-30849?
Upgrade mantisbt/mantisbt to 2.28.1 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-30849 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30849 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Other vulnerabilities in Mantisbt Mantisbt
- CVE-2019-15074 MantisBT allows cross-site scripting (XSS) via crafted filename
- 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
- CVE-2026-33548 MantisBT has Stored HTML Injection / XSS when displaying Tags in Timeline
Sources
Also known as GHSA-phrq-pc6r-f6gh.