CVE-2023-5692 — WordPress Core is vulnerable to Sensitive Information Exposure in versions up to

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

01What is this vulnerability?

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'.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-04-05T13:15:07.773
• Last modified: 2026-04-08T18:18:32.307

09References

• core.trac.wordpress.org — https://core.trac.wordpress.org/changeset/57645
• developer.wordpress.org — https://developer.wordpress.org/reference/functions/is_post_publicly_viewable/
• developer.wordpress.org — https://developer.wordpress.org/reference/functions/is_post_type_viewable/
• github.com — https://github.com/WordPress/wordpress-develop/blob/6.3/src/wp-includes/canonica…
• www.wordfence.com — https://www.wordfence.com/threat-intel/vulnerabilities/id/6e6f993b-ce09-4050-84a…
• core.trac.wordpress.org — https://core.trac.wordpress.org/changeset/57645
• developer.wordpress.org — https://developer.wordpress.org/reference/functions/is_post_publicly_viewable/
• developer.wordpress.org — https://developer.wordpress.org/reference/functions/is_post_type_viewable/
• github.com — https://github.com/WordPress/wordpress-develop/blob/6.3/src/wp-includes/canonica…
• www.wordfence.com — https://www.wordfence.com/threat-intel/vulnerabilities/id/6e6f993b-ce09-4050-84a…