MEDIUM
CVE-2023-5561
NVD-CWE-noinfoPublished: October 16, 2023· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
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
Technical Analysis
CVE-2023-5561 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
WordPress1 product(s)
wordpress
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (6)
→
https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/Exploit · Third Party Advisory
→
https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441Third Party Advisory
→
https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/Exploit · Third Party Advisory
→
https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441Third Party Advisory
Quick Facts
CVE IDCVE-2023-5561
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedOct 16, 2023
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-5561 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.