CVE-2021-38336 Edit Comments XT <= 1.0 Reflected Cross-Site Scripting

Q: What is CVE-2021-38336?

CVE-2021-38336 is a medium-severity cross-site scripting vulnerability in Edit Comments XT, published on 10 Sep 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Q: Is CVE-2021-38336 being exploited?

There is no known exploitation of CVE-2021-38336 in the wild and no public exploit code.

Q: How do I fix CVE-2021-38336?

No fix has been published for CVE-2021-38336 yet. Limit exposure of the affected software until one is available.

Medium 6.1 Published 10 Sep 2021 Updated 2 May 2025

Attackers can inject arbitrary web scripts via reflected XSS in the Edit Comments XT WordPress plugin, potentially compromising user sessions.

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-2021-38336?

CVE-2021-38336 is a medium-severity cross-site scripting vulnerability in Edit Comments XT, published on 10 Sep 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 Edit Comments XT WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["PHP_SELF"] value in the ~/edit-comments-xt.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.

Weakness: CWE-79

Which versions are affected by CVE-2021-38336?

It affects 1 product.

Products include Sw-Guide Edit Comments Xt.

How do I fix CVE-2021-38336?

No fix has been published for CVE-2021-38336 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-2021-38336 being exploited?