CVSS base score
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
The SEOPress – On-site SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the image alt parameter in all versions up to, and including, 7.5.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author access or higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
SEOPress versions up to 7.5.2.1 contain an input validation flaw that allows authenticated users with low privileges to read or modify data across the site. The vulnerability stems from insufficient input validation (CWE-20) and affects multiple users due to its changed scope. Site administrators should update to a version newer than 7.5.2.1 immediately.
What an attacker can do
Read or modify site data by sending crafted requests as a low-privilege authenticated user.
Potential impact on your site
Unauthorized data disclosure or modification by authenticated users with limited permissions.
Conditions required to exploit
Attacker must have a low-privilege account on the site (e.g., subscriber or contributor role).
Key dates
External resources
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