What’s Vulnerable › Vulnerabilities

CVE-2023-4636: WordPress File Sharing Plugin <= 2.0.3 - Authenticated (Admin+) Stored Cross-Site Scripting

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-09-05 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• WordPress File Sharing Plugin: through 2.0.3

References

• https://github.com/xsn1210/vul2/blob/main/xss%5BWordPressFile%5D%20.md
• https://plugins.trac.wordpress.org/changeset/2961909/user-private-files
• https://www.wordfence.com/threat-intel/vulnerabilities/id/1df04293-87e9-4ab4-975d-54d36a993ab0?source=cve
• https://github.com/xsn1210/vul2/blob/main/xss%5BWordPressFile%5D%20.md
• https://plugins.trac.wordpress.org/changeset/2961909/user-private-files
• https://www.wordfence.com/threat-intel/vulnerabilities/id/1df04293-87e9-4ab4-975d-54d36a993ab0?source=cve

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