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
Contest Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘id’ parameter in all versions up to, and including, 26.0.6 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.
Explanation of Vulnerability in Simple Terms
Contest Gallery contains a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users and site visitors. The vulnerability exists in versions up to 26.0.6 and can alter page content or steal session data. Site administrators should update to a version newer than 26.0.6 as soon as available.
What an attacker can do
Inject malicious scripts that execute in other users' browsers and affect site visitors.
Potential impact on your site
Attackers with basic user accounts can deface pages, steal visitor data, or compromise other users' sessions.
Conditions required to exploit
Attacker must have a low-privilege account (e.g., contributor or subscriber role) on the site.
Key dates
External resources
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