WordPress Core < 6.0.3 - Shared User Instance Weakness

Wordfence Intelligence   >   Vulnerability Database   >   WordPress Core < 6.0.3 - Shared User Instance Weakness
3.7
Exposure of Data Element to Wrong Session
CVSS 3.7 (Low)
Publicly Published October 18, 2022
Last Updated January 22, 2024
Researchers Alex Concha
Ben Bidner

Description

WordPress Core in versions up to 6.0.3 had a weakness in how Share User Instances were handled. This fix appears to have been necessary to safely use the wp_set_current_user( 0 ); method to patch the previously mentioned XSS and CSRF in wp-mail.php and wp-trackback.php vulnerabilities. The previous functionality may have resulted in third party plugins or themes using the wp_set_current_user function in a way that could lead to privilege escalation and users being able to perform more actions than originally intended.

References

Share

1 affected software package

WordPress

Software Type Core
Patched? Yes
Remediation Update to one of the following versions, or a newer patched version: 3.7.40, 3.8.40, 3.9.38, 4.0.37, 4.1.37, 4.2.34, 4.3.30, 4.4.29, 4.5.28, 4.6.25, 4.7.25, 4.8.21, 4.9.22, 5.0.18, 5.1.15, 5.2.17, 5.3.14, 5.4.12, 5.5.11, 5.6.10, 5.7.8, 5.8.6, 5.9.5, 6.0.3
Affected Versions
  • <= 3.6.1
  • 5.6 - 5.6.9
  • 5.7 - 5.7.7
  • 5.8 - 5.8.5
Expand to see 21 more affected version ranges.
  • 5.9 - 5.9.4
  • 6.0 - 6.0.2
  • 3.7 - 3.7.39
  • 3.8 - 3.8.39
  • 3.9 - 3.9.37
  • 4.0 - 4.0.36
  • 4.1 - 4.1.36
  • 4.2 - 4.2.33
  • 4.3 - 4.3.29
  • 4.4 - 4.4.28
  • 4.5 - 4.5.27
  • 4.6 - 4.6.24
  • 4.7 - 4.7.24
  • 4.8 - 4.8.20
  • 4.9 - 4.9.21
  • 5.0 - 5.0.17
  • 5.1 - 5.1.14
  • 5.2 - 5.2.16
  • 5.3 - 5.3.13
  • 5.4 - 5.4.11
  • 5.5 - 5.5.10
Patched Versions
  • 3.7.40
  • 3.8.40
  • 3.9.38
  • 4.0.37
Expand to see 20 more patched versions.
  • 4.1.37
  • 4.2.34
  • 4.3.30
  • 4.4.29
  • 4.5.28
  • 4.6.25
  • 4.7.25
  • 4.8.21
  • 4.9.22
  • 5.0.18
  • 5.1.15
  • 5.2.17
  • 5.3.14
  • 5.4.12
  • 5.5.11
  • 5.6.10
  • 5.7.8
  • 5.8.6
  • 5.9.5
  • 6.0.3

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