WordPress Core < 5.3.1 - Stored Cross-Site Scripting via Block Editor

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5.8
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2019-16780
CVSS 5.8 (Medium)
Publicly Published December 13, 2019
Last Updated August 14, 2023
Researcher Nguyen Van Khanh

Description

WordPress users with lower privileges (like contributors) can inject JavaScript code in the block editor using a specific payload, which is executed within the dashboard. This can lead to XSS if an admin opens the post in the editor. Execution of this attack does require an authenticated user. 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. Automatic updates are enabled by default for minor releases and we strongly recommend that you keep them enabled.

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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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