devcode-it openstamanager up to 2.10.1 oauth2.php unserialize deserialization

Summaryinfo

A vulnerability was found in devcode-it openstamanager up to 2.10.1. It has been classified as problematic. This vulnerability affects the function unserialize of the file oauth2.php. The manipulation leads to deserialization. This vulnerability is listed as CVE-2026-29782. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in devcode-it openstamanager up to 2.10.1. This issue affects the function unserialize of the file oauth2.php. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-29782 since 03/04/2026. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:oauth2.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.10.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d2e38cbdf91a831cefc0da1548e02b297ae644cc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• devcode-it

Name

• openstamanager

Version

• 2.10.0
• 2.10.1

License

• open-source

Website

• Product: https://github.com/devcode-it/openstamanager/

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CPE 2.2info

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