CVE-2025-4585 IRM Newsroom <= 1.2.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'irmflat' Shortcode

Medium 6.4 Published Updated

Authenticated attackers can inject arbitrary scripts via the 'irmflat' shortcode, executing them for other users.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-4585?

CVE-2025-4585 is a medium-severity cross-site scripting vulnerability in irmau IRM Newsroom, published on 13 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The IRM Newsroom plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'irmflat' 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.

Weakness: CWE-79

Which versions are affected by CVE-2025-4585?

It affects 1 product.

Products include Irmau Irm Newsroom.

How do I fix CVE-2025-4585?

No fix has been published for CVE-2025-4585 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-4585 being exploited?

There is no known exploitation of CVE-2025-4585 in the wild and no public exploit code.

Sources

Also known as GHSA-w5q6-h7v2-5fwq.

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