CVE-2026-85081

Multiple elFinder Plugins - DOM-based XSS via postMessage Origin Bypass

HIGH
7.5
CVSS Score
Published: September 26, 2026 at 06:00 AM UTC
Updated: September 28, 2026 at 04:38 PM UTC
3 products affected across 3 vendorsAdvancedfilemanagerFilesterFileorganizer

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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 8.0.5
Affected range stops below 8.0.5, so it looks safe — our inference, not a vendor statement
v < 1.2.1
Affected range stops below 1.2.1, so it looks safe — our inference, not a vendor statement
Filester· Ninjateamwordpress-plugin
60%
v < 2.1.3
Affected range stops below 2.1.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/3c5f9c52-e609-45aa-b441-491e15b3f4b8/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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