What’s Vulnerable › Vulnerabilities

CVE-2023-5311: WP EXtra <= 6.2 - Missing Authorization to .htaccess File Modification

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-10-25 · updated 2026-06-17
• Weakness: CWE-862

Description

The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue.

Affected products

• TienCOP WP EXtra: before 6.3 — fixed in 6.3

How to fix

Upgrade to a fixed version: TienCOP WP EXtra 6.3. Check the vendor advisory for mitigations.

References

• https://giongfnef.gitbook.io/giongfnef/cve/cve-2023-5311
• https://plugins.trac.wordpress.org/changeset/2977703/wp-extra
• https://www.wordfence.com/threat-intel/vulnerabilities/id/87e3dd5e-0d77-4d78-8171-0beaf9482699?source=cve
• https://giongfnef.gitbook.io/giongfnef/cve/cve-2023-5311
• https://plugins.trac.wordpress.org/changeset/2977703/wp-extra
• https://www.wordfence.com/threat-intel/vulnerabilities/id/87e3dd5e-0d77-4d78-8171-0beaf9482699?source=cve

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