CVE-2023-5561

MEDIUM EPSS 88.9%
Published Oct 16, 20232y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Oct 16, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
88.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Affected Products 17

VendorProductVersionRange
wordpresswordpress*≥4.7  –  <4.7.27
wordpresswordpress*≥4.8  –  <4.8.23
wordpresswordpress*≥4.9  –  <4.9.24
wordpresswordpress*≥5.0  –  <5.0.20
wordpresswordpress*≥5.1  –  <5.1.17
wordpresswordpress*≥5.2  –  <5.2.19
wordpresswordpress*≥5.3  –  <5.3.16
wordpresswordpress*≥5.4  –  <5.4.14
wordpresswordpress*≥5.5  –  <5.5.13
wordpresswordpress*≥5.6  –  <5.6.12
wordpresswordpress*≥5.7  –  <5.7.10
wordpresswordpress*≥5.8  –  <5.8.8
wordpresswordpress*≥5.9  –  <5.9.8
wordpresswordpress*≥6.0  –  <6.0.6
wordpresswordpress*≥6.1  –  <6.1.4
wordpresswordpress*≥6.2  –  <6.2.3
wordpresswordpress*≥6.3  –  <6.3.2

References 3

  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/11/msg00014.html
  • wpscan.com https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/
    ExploitThird Party Advisory
  • wpscan.com https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.