Vulnerability · Published Apr 2, 2026 · Assigned by GitHub_M
CVE-2026-29782OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2
High 7.2
In plain English
A high-severity unsafe deserialization in openstamanager from devcode-it. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | devcode-it/openstamanager | 2.10.2 | GHSA-whv5-4q2f-q68g |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| devcode-it | openstamanager | < 2.10.2 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H