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CVE

CVE-2023-5561

WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attacke

WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attackers to discern the email addresses of users who have published public posts on an affected website via an Oracle style attack.

MEDIUM · CVSS 5.3 EPSS 0.53022
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
▤

Affected Products & Versions

17
wordpress>= 4.7 and < 4.7.27
wordpress>= 4.8 and < 4.8.23
wordpress>= 4.9 and < 4.9.24
wordpress>= 5.0 and < 5.0.20
wordpress>= 5.1 and < 5.1.17
wordpress>= 5.2 and < 5.2.19
wordpress>= 5.3 and < 5.3.16
wordpress>= 5.4 and < 5.4.14
⚠

Public Exploits & PoCs

2
nucleiWordPress Core - Post Author Email Disclosuremedium
pocwpscan.com · email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2wpscan.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · contact@wpscan.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Oct 2023 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2023/11/msg00014.html
https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441Third Party Advisory
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