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 EPay.bg Payments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'epay' shortcode in all versions up to, and including, 0.1 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
EPay.bg Payments versions 0.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has scope impact, meaning injected code can affect users beyond the immediate vulnerable component. Low-privileged accounts can exploit this without user interaction.
What an attacker can do
Inject malicious scripts that execute in other users' browsers and affect site functionality.
Potential impact on your site
Authenticated attackers can deface pages, steal session tokens, or redirect users to malicious sites.
Conditions required to exploit
Attacker must have a low-privileged account; no user interaction required from victims.
Key dates
External resources
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