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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00008.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Seacms Seacms affected
Version Status Constraints
0 affected ≤ 11.1

Configuration 1 [-]

cpe:2.3:a:seacms:seacms:11.1:*:*:*:*:*:*:*

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.exploit-db.com/exploits/49251 cve-icon cve-icon
https://www.seacms.net/ cve-icon cve-icon
https://www.vulncheck.com/advisories/seacms-checkuser-stored-xss cve-icon cve-icon
History

Mon, 02 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Wed, 28 Jan 2026 18:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:seacms:seacms:11.1:*:*:*:*:*:*:*

Mon, 26 Jan 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 26 Jan 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Seacms
Seacms seacms
Vendors & Products Seacms
Seacms seacms

Sun, 25 Jan 2026 13:15:00 +0000

Type Values Removed Values Added
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.
Title Seacms 11.1 - 'checkuser' Stored XSS
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-02T15:58:16.372Z

Reserved: 2026-01-25T12:45:06.367Z

Link: CVE-2020-36932

cve-icon Vulnrichment

Updated: 2026-01-26T13:34:16.947Z

cve-icon NVD

Status : Modified

Published: 2026-01-25T13:15:59.560

Modified: 2026-02-02T16:16:14.143

Link: CVE-2020-36932

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-26T11:48:07Z

Weaknesses