CVE-2020-11026 - CVE House
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Status published High CVE-2020-11026

Specially crafted filenames in WordPress leading to XSS

Vulnerability Description

In affected versions of WordPress, files with a specially crafted name when uploaded to the Media section can lead to script execution upon accessing the file. This requires an authenticated user with privileges to upload files. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

WordPress
Vulnerable Versions:
>= 5.4.0, < 5.4.1, >= 5.3.0, < 5.3.3, >= 5.2.0, < 5.2.6, >= 5.1.0, < 5.1.5, >= 5.0.0, < 5.0.9, >= 4.9.0, < 4.9.14, >= 4.8.0, < 4.8.13, >= 4.7.0, < 4.7.17, >= 4.6.0, < 4.6.18, >= 4.5.0, < 4.5.21, >= 4.4.0, < 4.4.22, >= 4.3.0, < 4.3.23, >= 4.2.0, < 4.2.27, >= 4.1.0, < 4.1.30, >= 4.0.0, < 4.0.30, >= 3.9.0, < 3.9.31, >= 3.8.0, < 3.8.33, >= 3.7.0, < 3.7.33

Timeline

Official Publish: April 30th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Weaknesses (CWE)