Vulnerability · Published Sep 26, 2026 · Assigned by WPScan

CVE-2026-85081Multiple elFinder Plugins - DOM-based XSS via postMessage Origin Bypass

High 7.5

In plain English

A high-severity cross-site scripting in File Manager from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.2%top 87.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The File Manager WordPress plugin before 8.0.5, FileOrganizer WordPress plugin before 1.2.1, File Manager Pro WordPress plugin before 2.1.3 do not correctly validate the origin of window messages received by the file browser they load on their admin screens, accepting any origin that is a leading string prefix of the site's own address, which allows an unauthenticated attacker to run arbitrary JavaScript in the session of a logged-in administrator who visits a page under their control. The defect is in the file-manager library all three bundle, and every version below 2.1.70 carries it. Updating the bundled library closes it.

Affected products (as reported)

Vendor	Product	Versions
Unknown	File Manager	0 – before 8.0.5
Unknown	FileOrganizer	0 – before 1.2.1
Unknown	File Manager Pro	0 – before 2.1.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/3c5f9c52-e609-45aa-b441-491e15b3f4b8/ exploit, vdb-entry, technical-description