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 Paged Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'gallery' shortcode in all versions up to, and including, 0.7 due to insufficient input sanitization and output escaping on user supplied attributes. 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
Paged Gallery versions 0.7 and earlier contain a cross-site scripting vulnerability that allows an authenticated attacker to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. Low-privileged users can exploit this without user interaction to compromise confidentiality and integrity.
What an attacker can do
Inject malicious scripts that affect other users' sessions and data.
Potential impact on your site
Authenticated users can inject scripts affecting other users; site data and user sessions at risk.
Conditions required to exploit
Attacker must have low-level authentication (e.g., subscriber or contributor role) and network access.
Key dates
External resources
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