WordPress Core < 5.3.1 - Authorization Bypass

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4.3
Improper Authorization
CVE CVE-2019-20043
CVSS 4.3 (Medium)
Publicly Published December 1, 2019
Last Updated August 14, 2023
Researcher Daniel Bachhuber

Description

In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to mark posts as sticky or unsticky via the REST API. For example, the contributor role does not have such rights, but this allowed them to bypass that. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

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: 3.7.32, 3.8.32, 3.9.30, 4.0.29, 4.1.29, 4.2.26, 4.3.22, 4.4.21, 4.5.20, 4.6.17, 4.7.16, 4.8.12, 4.9.13, 5.0.8, 5.1.4, 5.2.5, 5.3.1
Affected Versions
  • 5.3
  • < 3.7
  • 5.0 - 5.0.7
  • 5.1 - 5.1.3
Expand to see 14 more affected version ranges.
  • 5.2 - 5.2.4
  • 3.7 - 3.7.31
  • 3.8 - 3.8.31
  • 3.9 - 3.9.29
  • 4.0 - 4.0.28
  • 4.1 - 4.1.28
  • 4.2 - 4.2.25
  • 4.3 - 4.3.21
  • 4.4 - 4.4.20
  • 4.5 - 4.5.19
  • 4.6 - 4.6.16
  • 4.7 - 4.7.15
  • 4.8 - 4.8.11
  • 4.9 - 4.9.12
Patched Versions
  • 3.7.32
  • 3.8.32
  • 3.9.30
  • 4.0.29
Expand to see 13 more patched versions.
  • 4.1.29
  • 4.2.26
  • 4.3.22
  • 4.4.21
  • 4.5.20
  • 4.6.17
  • 4.7.16
  • 4.8.12
  • 4.9.13
  • 5.0.8
  • 5.1.4
  • 5.2.5
  • 5.3.1

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