Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-73699

CVE-2026-73699HIGH

FileRun < 2026.3.0 PHP Object Injection via Perms::getPerms()

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   H   N   H   H   H    8.6   .0078   54.4     —

AFFECTED
  Product  Versions     Fixed
  FileRun  unspecified  —

TIMELINE
  Aug 13  Reserved by VulnCheck
  Sep 10  Published (CNA: VulnCheck)
  Oct 1   EXPLOIT PUBLISHED — CVE-2026-73699 (FileRun). Public exploit reference added.

CWE-502 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Deferred

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 13, 2026	Reserved	Reserved by VulnCheck
September 10, 2026	Published	Published (CNA: VulnCheck)
October 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-73699 (FileRun). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FileRun	FileRun	—	—	—

Weaknesses

CWE-502

References (3)

https://filerun.com/index.php/changelog?v=2026.3.0 [release-notes, patch]
https://vulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rce [technical-description, exploit]
https://www.vulncheck.com/advisories/filerun-php-object-injection-via-perms-getperms [third-party-advisory]

Authoritative record: CVE-2026-73699 at cve.org

Vendors: filerun

Weaknesses: CWE-502

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-73699 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.