WordPress Core 4.7.0 - 6.3.1 - Sensitive Information Exposure via User Search REST Endpoint

Wordfence Intelligence   >   Vulnerability Database   >   WordPress Core 4.7.0 - 6.3.1 - Sensitive Information Exposure via User Search REST Endpoint
5.3
Information Exposure
CVE CVE-2023-5561
CVSS 5.3 (Medium)
Publicly Published October 12, 2023
Last Updated January 22, 2024
Researcher Marc-Alexandre Montpas - Automattic

Description

WordPress Core is vulnerable to Sensitive Information Exposure in versions between 4.7.0 and 6.3.1 via the User REST endpoint. While the search results do not display user email addresses unless the requesting user has the 'list_users' capability, the search is applied to the user_email column. This can allow unauthenticated attackers to brute force or verify the email addresses of users with published posts or pages on the site.

References

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1 affected software package

WordPress

Software Type Core
Patched? Yes
Remediation Update to one of the following versions, or a newer patched version: 4.7.27, 4.8.23, 4.9.24, 5.0.20, 5.1.17, 5.2.19, 5.3.16, 5.4.14, 5.5.13, 5.6.12, 5.7.10, 5.8.8, 5.9.8, 6.0.6, 6.1.4, 6.2.3, 6.3.2
Affected Versions
  • 5.7 - 5.7.9
  • 5.8 - 5.8.7
  • 5.9 - 5.9.7
  • 6.0 - 6.0.5
Expand to see 13 more affected version ranges.
  • 6.1 - 6.1.3
  • 6.2 - 6.2.2
  • 6.3 - 6.3.1
  • 4.7 - 4.7.26
  • 4.8 - 4.8.22
  • 4.9 - 4.9.23
  • 5.0 - 5.0.19
  • 5.1 - 5.1.16
  • 5.2 - 5.2.18
  • 5.3 - 5.3.15
  • 5.4 - 5.4.13
  • 5.5 - 5.5.12
  • 5.6 - 5.6.11
Patched Versions
  • 4.7.27
  • 4.8.23
  • 4.9.24
  • 5.0.20
Expand to see 13 more patched versions.
  • 5.1.17
  • 5.2.19
  • 5.3.16
  • 5.4.14
  • 5.5.13
  • 5.6.12
  • 5.7.10
  • 5.8.8
  • 5.9.8
  • 6.0.6
  • 6.1.4
  • 6.2.3
  • 6.3.2

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