Vulnerability in WordPress
CVE-2023-5561
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.039 (89.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- WordPress — versions 6.3.0, 6.2.0, 6.1.0
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441 (technical-description, Third Party Advisory, exploit, vdb-entry)
- wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/ (Exploit, technical-description, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/11/msg00014.html
Frequently asked questions
- What is CVE-2023-5561?
- CVE-2023-5561 is a medium-severity vulnerability in WordPress, classified under CWE-200 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR. CVSS score: 5.3/10. Published 2023-10-16.
- How severe is CVE-2023-5561?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-5561 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.