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

Quick assessment

Affected
Unknown File Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件 File Manager（版本低于 8.0.5）、FileOrganizer（版本低于 1.2.1）以及 File Manager Pro（版本低于 2.1.3）在其管理界面中加载的文件浏览器未能正确验证所接收的窗口消息的来源。该缺陷允许任何来源只要其为网站自身地址的前缀字符串即被接受，从而导致未认证的攻击者可以在访问其可控页面的已登录管理员会话中执行任意 JavaScript 代码。 此缺陷存在于三个插件共同打包使用的 file-manager 库中，所有低于 2.1.70 版本的该库均

AI Predicted 8.1 Difficulty: Easy EPSS 0.22% · P11

Affected Version Matrix 3

VendorProduct Version RangeStatus
Unknown File Manager < 8.0.5 affected
Unknown File Manager Pro < 2.1.3 affected
Unknown FileOrganizer < 1.2.1 affected
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I. Basic Information for CVE-2026-85081

Vulnerability Information
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Vulnerability Title
Multiple elFinder Plugins - DOM-based XSS via postMessage Origin Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown File Manager 0 ~ 8.0.5 -
Unknown FileOrganizer 0 ~ 1.2.1 -
Unknown File Manager Pro 0 ~ 2.1.3 -

II. Public POCs for CVE-2026-85081

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-85081

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Other References for CVE-2026-85081 (1)

Same Patch Batch · Unknown · 2026-09-26 · 15 CVEs total

CVE-2026-89237 Bluff Post <= 1.1.1 - Unauthenticated SQLi via 'table_name' and 'column_name' Parameters
CVE-2026-16591 WP Directory Kit < 1.5.8 - Listing Admin+ Stored XSS via Category and Location Title and I
CVE-2026-11871 Team Showcase Supreme < 9.3 - Unauthenticated Sensitive Data Disclosure via wpm_6310_team_
CVE-2026-19708 File Manager 7.2.2 - 8.0.4 - Unauthenticated Database Backup Disclosure
CVE-2026-84096 WP Review Slider Pro < 12.7.12 - Subscriber+ Stored XSS via Review Form Fields
CVE-2026-84095 WP Review Slider Pro < 12.7.12 - Subscriber+ Stored XSS via Review Import
CVE-2026-92411 WP Delicious < 1.10.8 - Contributor+ Stored XSS via Recipe Block Tag Name
CVE-2026-84097 WP Review Slider Pro < 12.7.12 - Subscriber+ SQLi via Stored Template Filter
CVE-2026-96533 Testimonials Widget <= 4.0.4 - Unauthenticated SSRF via Featured Image URL
CVE-2026-96532 Testimonials Widget <= 4.0.4 - Unauthenticated Arbitrary Post Update
CVE-2026-96524 MCP Server for WordPress < 1.8.2 - Administrator Account Creation via CSRF
CVE-2026-96526 MCP Server for WordPress < 1.8.2 - Contributor+ Arbitrary Post Title Disclosure via workfl
CVE-2026-96531 Optimole 4.0.0 - 4.2.12 - Author+ Stored XSS via Video Player Block
CVE-2026-96525 MCP Server for WordPress < 1.8.2 - Contributor+ Workflow Modification and Deletion via Mis

IV. Related Vulnerabilities

Same product: File Manager
Same vendor: Unknown

V. Comments for CVE-2026-85081

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