WordPress Core < 6.2.1 - Insufficient Sanitization of Block Attributes

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6.4
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CVSS 6.4 (Medium)
Publicly Published May 16, 2023
Last Updated August 14, 2023

Description

WordPress Core failed to sufficiently sanitize block attributes in versions up to, and including, 6.2. This makes it possible for authenticated attackers with contributor-level and above permissions to embed arbitrary content in HTML comments on the page, though Cross-Site Scripting may be possible when combined with an additional vulnerability.

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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: 4.1.38, 4.2.35, 4.3.31, 4.4.30, 4.5.29, 4.6.26, 4.7.26, 4.8.22, 4.9.23, 5.0.19, 5.1.16, 5.2.18, 5.3.15, 5.4.13, 5.5.12, 5.6.11, 5.7.9, 5.8.7, 5.9.6, 6.0.4, 6.1.2, 6.2.1
Affected Versions
  • < 4.1
  • 5.7 - 5.7.9
  • 5.8 - 5.8.7
  • 5.9 - 5.9.6
Expand to see 19 more affected version ranges.
  • 6.0 - 6.0.4
  • 6.1 - 6.1.2
  • 6.2 - 6.2.1
  • 4.1 - 4.1.38
  • 4.2 - 4.2.35
  • 4.3 - 4.3.31
  • 4.4 - 4.4.30
  • 4.5 - 4.5.29
  • 4.6 - 4.6.26
  • 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
  • 4.1.38
  • 4.2.35
  • 4.3.31
  • 4.4.30
Expand to see 18 more patched versions.
  • 4.5.29
  • 4.6.26
  • 4.7.26
  • 4.8.22
  • 4.9.23
  • 5.0.19
  • 5.1.16
  • 5.2.18
  • 5.3.15
  • 5.4.13
  • 5.5.12
  • 5.6.11
  • 5.7.9
  • 5.8.7
  • 5.9.6
  • 6.0.4
  • 6.1.2
  • 6.2.1

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