CVE-2026-29782
OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2
- Published
- Apr 2, 2026
- Updated
- Apr 3, 2026
- Assigning CNA
- GitHub_M
- Evidence observed
- Sep 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 45.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, the oauth2.php file in OpenSTAManager is an unauthenticated endpoint ($skip_permissions = true). It loads a record from the zz_oauth2 table using the attacker-controlled GET parameter state, and during the OAuth2 configuration flow calls unserialize() on the access_token field without any class restriction. This issue has been patched in version 2.10.2.
Sources
1Proof-of-concept exploit for CVE-2026-29782, chaining SQL injection and PHP object injection to achieve remote code execution in OpenSTAManager. Includes webshell deployment and reverse shell options.
Responsible use
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