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 score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.21%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
A vulnerability classified as problematic has been found in YzmCMS 7.1. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
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
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability classified as problematic has been found in YzmCMS 7.1. Affected is an unknown function of the file message.tpl. The manipulation of the argument gourl leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Yzmcms.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability classified as problematic has been found in YzmCMS 7.1. Affected is an unknown function of the file message.tpl. The manipulation of the argument gourl leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Executive ViewAI
Organizations using A vulnerability classified as problematic should be aware of moderate risk from CVE-2025-3397, a cross-site scripting vulnerability rated CVSS 5.3. 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
VulDB
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
YzmCMS v5.2 has admin/role/add.html CSRF. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no
Eval injection in yzmphp/core/function/global.func.php in YzmCMS v3.7.1 allows remote attackers to achieve arbitrary cod
\application\admin\controller\update_urls.class.php in YzmCMS 3.6 has SQL Injection via the catids array parameter to ad
Cross Site Scripting (XSS) vulnerability in YzmCMS 7.0 allows attackers to run arbitrary code via Ads Management, Carous
An issue was discovered in YzmCMS 3.8. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low
An issue was discovered in YzmCMS 3.8. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low
admin/urlrule/add.html in YzmCMS 5.3 allows CSRF with a resultant denial of service by adding a superseding route. Rated
member/index/register.html in YzmCMS 6.5 through 7.0 allows XSS via the Referer HTTP header. Rated medium severity (CVSS
A cross-site scripting (XSS) vulnerability in the Publish Article function of yzmcms v7.1 allows attackers to execute ar
An issue in the component /member/index/login of yzmcms v7.0 allows attackers to direct users to malicious sites via a c
In YzmCMS v5.5 the member contribution function in the editor contains a cross-site scripting (XSS) vulnerability. Rated
An HTTP Host header injection vulnerability exists in YzmCMS V5.3. Rated medium severity (CVSS 6.1), this vulnerability
GitHub PoC
Exploit-DB