Medium severity · published Jan 25, 2026
CVE-2020-36932
Seacms 11.1 - 'checkuser' Stored XSS
6.1
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Seacms · Seacms
through 11.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36932
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-36932
Exploit
https://www.exploit-db.com/exploits/49251
Product
https://www.seacms.net/
Third Party Advisory
https://www.vulncheck.com/advisories/seacms-checkuser-stored-xss
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