CVE-2025-4573
Mattermost Server 9.11.0 – 9.11.14
Raw vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:NSummary
CVE-2025-4573 is a medium-severity LDAP Injection (CWE-90) vulnerability in Mattermost Mattermost Server. Its CVSS base score is 4.1 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 15th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-18095
Vulnerability Data
Mattermost versions 10.7.x <= 10.7.1, 10.6.x <= 10.6.3, 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly validate LDAP group ID attributes, allowing an authenticated administrator with PermissionSysconsoleWriteUserManagementGroups permission to execute LDAP search filter injection via the PUT /api/v4/ldap/groups/{remote_id}/link API…
more
when objectGUID is configured as the Group ID Attribute.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.2.6
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation can discover LDAP injection flaws through static analysis or crafted test cases.
Input validation directly stops untrusted data from reaching an LDAP query builder without neutralization of special characters.
Secure engineering principles require safe query construction and escaping that structurally prevents LDAP injection.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require input neutralization and query parameterization to prevent LDAP injection.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development catches LDAP injection via dynamic analysis or fuzzing, but does not prevent it at the source.
Secure development lifecycle mandates input validation and query construction practices that directly prevent LDAP injection.
Application security requirements include explicit rules for safe construction of directory queries, mitigating LDAP injection.
Secure coding standards require proper neutralization of LDAP special characters, directly eliminating this weakness.
Secure architecture principles encourage safe query interfaces but do not prescribe the specific coding controls needed for LDAP injection.
Information access restriction limits who can query LDAP but does not address how queries are built.