CVE-2022-43500
WordPress Core < 6.0.3 & Gutenberg < 14.3.1 - Authenticated Cross-Site Scripting in Various Blocks
mediumImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
6.4
CVSS Score
6.4
CVSS Score
medium
Severity
14.3.1
Patched in
926d
Time to patch
Description
WordPress Core in versions up to 6.0.3 and the Gutenberg plugin for WordPress in versions up to 14.3.1 are vulnerable to Stored Cross-Site Scripting due to insufficient output escaping on user supplied input. The RSS widget, Search Block, Featured Image Block, RSS Block, and Navigation Block are all affected components. This makes it possible for authenticated users with access to the block editor to inject malicious web scripts that may execute whenever accessing the page.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NAttack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Low
Confidentiality
Low
Integrity
None
Availability
Technical Details
Affected versions
<=14.3.0PublishedOctober 18, 2022
Last updatedApril 30, 2025
Affected plugingutenberg
What Changed in the Fix
Changes introduced in v14.3.1
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