CVE-2023-6561 MEDIUM

CVE-2023-6561: Featured Image from URL (FIFU) <= 4.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via featured image alt text

Vendor Marceljm
Product Featured Image from URL (FIFU)
Weakness CWE-79 · XSS
Published January 11, 2024
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Featured Image from URL (FIFU) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the featured image alt text in all versions up to, and including, 4.5.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Key dates

02Disclosure timeline

January 11, 2024 CVE published
April 8, 2026 Record updated

Related vulnerabilities

04Related CVE