CVE-2020-36932 Seacms 11.1 - 'checkuser' Stored XSS
Attackers can inject malicious JavaScript into the admin settings page, leading to script execution in victim browsers.
- 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-2020-36932?
CVE-2020-36932 is a medium-severity cross-site scripting vulnerability in Seacms Seacms, published on 25 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
SeaCMS 11.1 contains a stored cross-site scripting vulnerability in the checkuser parameter of the admin settings page. Attackers can inject malicious JavaScript payloads that will execute in users' browsers when the page is loaded.
Weakness: CWE-79
Which versions are affected by CVE-2020-36932?
It affects 1 product.
Products include Seacms Seacms.
How do I fix CVE-2020-36932?
No fix has been published for CVE-2020-36932 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-2020-36932 being exploited?
There is no known exploitation of CVE-2020-36932 in the wild and no public exploit code.
Other vulnerabilities in Seacms Seacms
Sources
Also known as GHSA-98f4-2wgg-m2jf.