CVE-2023-6990 Weaver Xtreme <= 6.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

Medium 5.4 Published Updated

Authenticated attackers can inject arbitrary web scripts via custom post meta, leading to script execution on victim pages.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-6990?

CVE-2023-6990 is a medium-severity cross-site scripting vulnerability in wpweaver Weaver Xtreme, published on 11 Jan 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Weaver Xtreme theme for WordPress is vulnerable to Stored Cross-Site Scripting via custom post meta in all versions up to, and including, 6.3.0 due to insufficient input sanitization and output escaping on user supplied meta (page-head-code). This makes it possible for authenticated attackers with contributor-level and above permissions 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-2023-6990?

It affects 1 product.

Products include Weavertheme Weaver Xtreme Theme Support.

How do I fix CVE-2023-6990?

No fix has been published for CVE-2023-6990 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-2023-6990 being exploited?

There is no known exploitation of CVE-2023-6990 in the wild and no public exploit code.

Sources

Also known as GHSA-p44f-cgp3-q8cf.

Is CVE-2023-6990 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free