CVE-2021-24434 Glass <= 1.3.2 - CSRF to Stored Cross-Site Scripting (XSS)

Medium 6.1 Published Updated

Attackers can inject malicious scripts via CSRF in Glass plugin settings, leading to stored XSS and potential site compromise.

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

What is CVE-2021-24434?

CVE-2021-24434 is a medium-severity cross-site scripting vulnerability in Unknown Glass, published on 12 Jul 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Glass WordPress plugin through 1.3.2 does not sanitise or escape its "Glass Pages" setting before outputting in a page, leading to a Stored Cross-Site Scripting issue. Furthermore, the plugin did not have CSRF check in place when saving its settings, allowing the issue to be exploited via a CSRF attack.

Weakness: CWE-79, CWE-352

Which versions are affected by CVE-2021-24434?

It affects 1 product.

Products include Codeblab Glass.

How do I fix CVE-2021-24434?

No fix has been published for CVE-2021-24434 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-2021-24434 being exploited?

There is no known exploitation of CVE-2021-24434 in the wild and no public exploit code.

Sources

Also known as GHSA-h2mf-xvhf-xh95.

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