Unauthenticated slug disclosure via overbroad 404 guessing
Published Apr 5, 2024 · Updated Apr 8, 2026
Information disclosure in WordPress 6.4.3 and earlier allows remote attackers to expose private custom post slugs through 404 requests. The redirect_guess_404_permalink function searches public but non-queryable post types using attacker-controlled slug prefixes and returns a canonical redirect containing a matching post's complete slug. Exposure requires such a custom post type and a matching slug prefix; the response reveals the hidden identifier but not the post contents.
Summary
What happened
Information disclosure in WordPress 6.4.3 and earlier allows remote attackers to expose private custom post slugs through 404 requests. The redirect_guess_404_permalink function searches public but non-queryable post types using attacker-controlled slug prefixes and returns a canonical redirect containing a matching post's complete slug. Exposure requires such a custom post type and a matching slug prefix; the response reveals the hidden identifier but not the post contents.
The record
- CVE
- CVE-2023-5692
- Published
- Apr 5, 2024
- Updated
- Apr 8, 2026
- Vendor
- WordPress.org
- Product
- WordPress
- Classifications
- CWE-200, T1595.003
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 5, 2024CVE publishedPublication date reported by the CVE source.
- Apr 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=6.4.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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