Dolibarr before 23.0.4 PHP Object Injection via jsonOrUnserialize()

Advisories

Dolibarr before 23.0.4 PHP Object Injection via jsonOrUnserialize()

Severity: high
Date: 10/15/2026
Affecting: dolibarr >= 0, < 23.0.4
CVE: CVE-2026-110874
CWE: CWE-502 Deserialization of Untrusted Data
CVSS: 7.5
CVSS V4 Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: Pull Request #38530
Patch Commit
https://github.com/Dolibarr/dolibarr
Credit: XananasX7
Description: Dolibarr before 23.0.4 contains a PHP object injection vulnerability in jsonOrUnserialize() in functions.lib.php, which calls unserialize() without class restrictions when json_decode() fails. Attackers able to write stored extrafields, export configurations or blocked log entries can plant serialized objects that trigger gadget chains for code execution or file manipulation.

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