WordPress wordpress core

WordPress Core < 6.0.2 — Stored Cross-Site Scripting via Plugin Deactivation and Deletion Errors

300c6ea4-4eed-4be5-abfd-ec4ad9b741d3Published Aug 30, 2022 · Updated Nov 13, 2026

Affected: ≤6.0.1Update to 3.7.39 or 3.8.39 or 3.9.37 or 4.0.36 or 4.1.36 or 4.2.33 or 4.3.29 or 4.4.28 or 4.5.27 or 4.6.24 or 4.7.24 or 4.8.20 or 4.9.21 or 5.0.17 or 5.1.14 or 5.2.16 or 5.3.13 or 5.4.11 or 5.5.10 or 5.6.9 or 5.7.7 or 5.8.5 or 5.9.4 or 6.0.2 or newer

Fixed versions are per release branch: update to the fix for the branch you run.

All remediation steps

Watch core

Medium4.4CVSS 3.14.4CISA KEVNot listedAccessAdmin account required

On this page3

Overview

Advisory ID: 300c6ea4-4eed-4be5-abfd-ec4ad9b741d3
Product: WordPress wordpress
Affected: ≤6.0.1
Fixed in: 3.7.39, 3.8.39, 3.9.37, 4.0.36, 4.1.36, 4.2.33, 4.3.29, 4.4.28, 4.5.27, 4.6.24, 4.7.24, 4.8.20, 4.9.21, 5.0.17, 5.1.14, 5.2.16, 5.3.13, 5.4.11, 5.5.10, 5.6.9, 5.7.7, 5.8.5, 5.9.4, 6.0.2
Weakness: CWE-79 Cross-Site Scripting
Required access: Admin account required
Published: Aug 30, 2022 · updated Nov 13, 2026
Credit: Khalilov Moe

Affected≤ 6.0.1
Patched in3.7.39 / 3.8.39 / 3.9.37 / 4.0.36 / 4.1.36 / 4.2.33 / 4.3.29 / 4.4.28 / 4.5.27 / 4.6.24 / 4.7.24 / 4.8.20 / 4.9.21 / 5.0.17 / 5.1.14 / 5.2.16 / 5.3.13 / 5.4.11 / 5.5.10 / 5.6.9 / 5.7.7 / 5.8.5 / 5.9.4 / 6.0.2

4.4

CVSS 3.1 · CNA (Wordfence)

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

What does this vector mean?

AV:N Attack vector: Network
AC:H Attack complexity: High
PR:H Privileges required: High
UI:N User interaction: None
S:C Scope: Changed
C:L Confidentiality: Low
I:L Integrity: Low
A:N Availability: None

WordPress Core, in versions up to 6.0.2, is vulnerable to Stored Cross-Site Scripting that can be exploited when malicious content is injected into plugin code that triggers when an error occurs during plugin de-activation or during deletion. This requires an attacker have access to the modify the error message that is displayed either in the plugin's code or via a request parameter, in most cases it is likely to be the latter.

Not sure which version you run? Run a passive check — it reads public files only.

Remediation & mitigations

Update to one of the following versions, or a newer patched version: 3.7.39, 3.8.39, 3.9.37, 4.0.36, 4.1.36, 4.2.33, 4.3.29, 4.4.28, 4.5.27, 4.6.24, 4.7.24, 4.8.20, 4.9.21, 5.0.17, 5.1.14, 5.2.16, 5.3.13, 5.4.11, 5.5.10, 5.6.9, 5.7.7, 5.8.5, 5.9.4, 6.0.2
Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.

References & provenance

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

Advisorywordfence.com

Timeline

Aug 30, 2022
CVE published
Severity medium, CVSS 4.4
Nov 13, 2026
Record last updated

Sources & licenses

Vulnerability data: Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVSS / CWE: National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.

How we use these sources