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 HTML Tag Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in all versions up to, and including, 1.1 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
HTML Shortcodes versions 1.1 and earlier contain a cross-site scripting vulnerability. An attacker with low-level user privileges can inject malicious scripts that execute in other users' browsers, potentially stealing session data or performing actions on their behalf. The vulnerability affects the scope beyond the vulnerable component itself.
What an attacker can do
Inject malicious scripts that run in other users' browsers and steal their session data or perform actions as them.
Potential impact on your site
Any logged-in user with low privileges can compromise other users' accounts or sessions through script injection.
Conditions required to exploit
Attacker must have low-level user account access; no user interaction required from victims.
Key dates
External resources
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