What’s Vulnerable › Vulnerabilities

CVE-2023-5692: WordPress Core <= 6.4.3 - Sensitive Information Exposure via redirect_guess_404_permalink

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-05 · updated 2026-06-17
• Weakness: CWE-200

Description

WordPress Core is vulnerable to Sensitive Information Exposure in versions up to, and including, 6.4.3 via the redirect_guess_404_permalink function. This can allow unauthenticated attackers to expose the slug of a custom post whose 'publicly_queryable' post status has been set to 'false'.

Affected products

• WordPress: through 6.4.3

References

• https://core.trac.wordpress.org/changeset/57645
• https://developer.wordpress.org/reference/functions/is_post_publicly_viewable/
• https://developer.wordpress.org/reference/functions/is_post_type_viewable/
• https://github.com/WordPress/wordpress-develop/blob/6.3/src/wp-includes/canonical.php#L763
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6e6f993b-ce09-4050-84a1-cbe9953f36b1?source=cve
• https://core.trac.wordpress.org/changeset/57645
• https://developer.wordpress.org/reference/functions/is_post_publicly_viewable/
• https://developer.wordpress.org/reference/functions/is_post_type_viewable/
• https://github.com/WordPress/wordpress-develop/blob/6.3/src/wp-includes/canonical.php#L763
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6e6f993b-ce09-4050-84a1-cbe9953f36b1?source=cve

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