WordPress Core < 5.5.2 - Privilege Escalation via XML-RPC

Improper Privilege Management
CVE CVE-2020-28036
CVSS High (8.8)
Publicly Published October 29, 2020
Last Updated January 22, 2024
Researcher Justin Tran
Description

wp-includes/class-wp-xmlrpc-server.php in WordPress before 5.5.2 allows attackers to gain privileges by using XML-RPC to comment on a post.

References

1 affected software package

Software Type Core
Software Slug wordpress (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.7
  • 3.7 - 3.7.34
  • 3.8 - 3.8.34
  • 3.9 - 3.9.32
  • 4.0 - 4.0.31
  • 4.1 - 4.1.31
  • 4.2 - 4.2.28
  • 4.3 - 4.3.24
  • 4.4 - 4.4.23
  • 4.5 - 4.5.22
  • 4.6 - 4.6.19
  • 4.7 - 4.7.18
  • 4.8 - 4.8.14
  • 4.9 - 4.9.15
  • 5.0 - 5.0.10
  • 5.1 - 5.1.6
  • 5.2 - 5.2.7
  • 5.3 - 5.3.4
  • 5.4 - 5.4.2
  • 5.5 - 5.5.1
Patched Version
  • 3.7.35
  • 3.8.35
  • 3.9.33
  • 4.0.32
  • 4.1.32
  • 4.2.29
  • 4.3.25
  • 4.4.24
  • 4.5.23
  • 4.6.20
  • 4.7.19
  • 4.8.15
  • 4.9.16
  • 5.0.11
  • 5.1.7
  • 5.2.8
  • 5.3.5
  • 5.4.3
  • 5.5.2
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.