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 IRM Newsroom plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'irmeventlist' shortcode in all versions up to, and including, 1.2.19 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
IRM Newsroom versions 1.2.19 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other users viewing affected content. The vulnerability has scope change, meaning the impact extends beyond the vulnerable component itself.
What an attacker can do
Inject malicious scripts that run in other users' browsers when they view the affected content.
Potential impact on your site
Authenticated users can inject scripts affecting other visitors; session hijacking, credential theft, or malware distribution possible.
Conditions required to exploit
Attacker must have a low-privilege authenticated account on the site.
Key dates
External resources
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