FileRun < 2026.3.0 PHP Object Injection via Perms::getPerms()
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.6epss 0.5%
exploitation probability
0.5%top 56% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
FileRun · FileRunpublic PoCs found — 1
cve_referencevulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rceunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.