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CVE-2023-4636

MediumPublished

WordPress File Sharing Plugin <= 2.0.3 - Authenticated (Admin+) Stored Cross-Site Scripting

Published: Sep 5, 2023
Updated: Apr 8, 2026
Assigning CNA: Wordfence
Evidence observed: Aug 7, 2026

Primary CVSS

4.8/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS probability estimate

1.0%

Low · next 30 days

Percentile: 60.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The WordPress File Sharing Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 2.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Sources

CVE-2023-4636Exploit
Unauthenticated Remote Code Execution with default Imagick

Responsible use

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