Seacms
CVE-2020-36932
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 6.1 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. Exploitation requires authentication. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker (requires authentication) could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
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 6.1 MEDIUM]
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects the checkuser component of Seacms. 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.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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.
Executive ViewAI
Organizations using SeaCMS 11.1 should be aware of moderate risk from CVE-2020-36932, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Exploit-DB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
SeaCMS v13.3 was discovered to contain a remote code execution (RCE) vulnerability via the component phomebak.php. Rated
SeaCMS V13.1 is vulnerable to Incorrect Access Control. Rated critical severity (CVSS 9.1), this vulnerability is remote
SQL Injection vulnerability in SeaCMS v.13.2 and before allows a remote attacker to execute arbitrary code via the DoTra
Seacms <=13.3 is vulnerable to SQL Injection in admin_type_news.php. Rated critical severity (CVSS 9.8), this vulnerabil
Seacms <13.3 is vulnerable to SQL Injection in admin_pay.php. Rated critical severity (CVSS 9.8), this vulnerability is
Seacms <=13.3 is vulnerable to SQL Injection in admin_zyk.php. Rated critical severity (CVSS 9.8), this vulnerability is
Seacms <=13.3 is vulnerable to SQL Injection in admin_reslib.php. Rated critical severity (CVSS 9.8), this vulnerability
Seacms <=13.3 is vulnerable to SQL Injection in admin_paylog.php. Rated critical severity (CVSS 9.8), this vulnerability
Seacms <=13.3 is vulnerable to SQL Injection in admin_members.php. Rated critical severity (CVSS 9.8), this vulnerabilit
SeaCMS v13.3 was discovered to contain a SQL injection vulnerability via the component admin_comment_news.php. Rated cri
SeaCMS v13.3 was discovered to contain a SQL injection vulnerability via the component admin_topic.php. Rated critical s
SeaCMS v13.3 was discovered to contain a SQL injection vulnerability via the component admin_manager.php. Rated critical
GitHub PoC