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| Vulnerability ID | VCID-843s-1vx7-nueb |
| Aliases |
CVE-2026-30849
GHSA-phrq-pc6r-f6gh |
| Summary | MantisBT is vulnerable to authentication bypass through the SOAP API on MySQL Mantis Bug Tracker instances running on MySQL and compatible databases are affected by an authentication bypass vulnerability in the SOAP API, as a result of 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. ### Impact 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. ### Patches * b349e5c890eeda9bd82e7c7e14479853f8a30d9f ### Workarounds - [Disabling the SOAP API](https://mantisbt.org/docs/master/en-US/Admin_Guide/html-desktop/#admin.config.api.disable) significantly reduces the risk, but still allows the attacker to retrieve user account information including email address and real name. ### Resources - https://mantisbt.org/bugs/view.php?id=36902 ### Credits MantisBT thanks Alexander Philiotis of SynerComm for discovering and responsibly reporting the issue. |
| Status | Published |
| Exploitability | None |
| Weighted Severity | None |
| Risk | None |
| Affected and Fixed Packages | Package Details |
| System | Score | Found at |
|---|---|---|
| epss | 0.0014 | https://api.first.org/data/v1/epss?cve=CVE-2026-30849 |
| cvssv4 | 9.3 | https://github.com/mantisbt/mantisbt |
| generic_textual | CRITICAL | https://github.com/mantisbt/mantisbt |
| cvssv4 | 9.3 | https://github.com/mantisbt/mantisbt/commit/b349e5c890eeda9bd82e7c7e14479853f8a30d9f |
| generic_textual | CRITICAL | https://github.com/mantisbt/mantisbt/commit/b349e5c890eeda9bd82e7c7e14479853f8a30d9f |
| ssvc | Track | https://github.com/mantisbt/mantisbt/commit/b349e5c890eeda9bd82e7c7e14479853f8a30d9f |
| cvssv4 | 9.3 | https://github.com/mantisbt/mantisbt/security/advisories/GHSA-phrq-pc6r-f6gh |
| generic_textual | CRITICAL | https://github.com/mantisbt/mantisbt/security/advisories/GHSA-phrq-pc6r-f6gh |
| ssvc | Track | https://github.com/mantisbt/mantisbt/security/advisories/GHSA-phrq-pc6r-f6gh |
| cvssv4 | 9.3 | https://nvd.nist.gov/vuln/detail/CVE-2026-30849 |
| generic_textual | CRITICAL | https://nvd.nist.gov/vuln/detail/CVE-2026-30849 |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
| Percentile | 0.33855 |
| EPSS Score | 0.0014 |
| Published At | June 5, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-06-04T16:58:40.065480+00:00 | GithubOSV Importer | Import | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-phrq-pc6r-f6gh/GHSA-phrq-pc6r-f6gh.json | 38.6.0 |