CVE-2026-42289
Published: 12 May 2026
Summary
CVE-2026-42289 is a high-severity Improper Privilege Management (CWE-269) vulnerability. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 2.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-29877
Vulnerability details
ChurchCRM is an open-source church management system. Prior to 7.3.2, UserEditor.php processes user account creation and permission updates entirely through $_POST parameters with no CSRF token validation. An unauthenticated attacker can craft a malicious HTML page that, when visited by…
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an authenticated administrator, silently elevates any low-privilege user to full administrator or creates a new admin backdoor account without the victim's knowledge This vulnerability is fixed in 7.3.2.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CSRF in public-facing web app directly enables unauthorized account creation and privilege escalation (admin backdoor).
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Certification assesses that critical functions have required authentication controls in place.
Re-authentication enforces fresh credential validation for critical functions or operations as defined by the organization parameter.
Baseline tailoring enforces organization-specific privilege-management decisions rather than accepting generic high-water-mark settings.
Documented procedures for role definition, privilege assignment, and removal provide the management framework that prevents improper privilege management.
By determining which components are critical, the analysis drives proper privilege assignment and management for those components, limiting attacker escalation paths.
Developer training on implemented privilege management controls prevents improper assignment or escalation through correct configuration and operation.
Least-privilege and separation-of-duties principles prevent improper privilege management.