FileRun before 2026.3.0 contains a PHP object injection vulnerability that allows authenticated attackers to execute arbitrary code by exploiting incorrect options passed to unserialize() in the Perms::getPerms() method, where a positional array is used instead of the required named-key array to disable class instantiation. Attackers with database write access can inject a serialized gadget chain into the permissions table columns processed on every authenticated page load to write arbitrary files, such as PHP webshells, to web-accessible paths.
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Thu, 10 Sep 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FileRun before 2026.3.0 contains a PHP object injection vulnerability that allows authenticated attackers to execute arbitrary code by exploiting incorrect options passed to unserialize() in the Perms::getPerms() method, where a positional array is used instead of the required named-key array to disable class instantiation. Attackers with database write access can inject a serialized gadget chain into the permissions table columns processed on every authenticated page load to write arbitrary files, such as PHP webshells, to web-accessible paths. | |
| Title | FileRun < 2026.3.0 PHP Object Injection via Perms::getPerms() | |
| Weaknesses | CWE-502 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-10T16:36:24.384Z
Updated: 2026-09-10T17:11:17.675Z
Reserved: 2026-08-13T15:15:54.513Z
Link: CVE-2026-73699
No data.
Status : Received
Published: 2026-09-10T17:17:06.083
Modified: 2026-09-10T17:17:06.083
Link: CVE-2026-73699
No data.