CVE-2026-15202
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
A security vulnerability has been detected in YzmCMS up to version 7.5. The function get_url in the file /yzmphp/yzmphp.php of the Header Handler component is affected. Manipulation of the HTTP_HOST argument leads to cross-site scripting (XSS), which can be exploited remotely. The exploit has been publicly disclosed and may be used.
Risk Assessment
An attacker can remotely inject malicious scripts, leading to session theft, redirects, or data theft from users. The risk is high due to the publicly available exploit and the vendor's lack of response.
Recommendation
Immediately update YzmCMS to the latest version (above 7.5) or apply a temporary fix such as filtering the HTTP_HOST header. If no update is available, consider migrating to another CMS solution.
Other vulnerabilities in YzmCMS
See all- CVE-2022-23383Critical
YzmCMS v6.3 is affected by a broken access control vulnerability that allows unauthorized access to users' personal home pages without login. The issue arises from missing authentication checks before accessing the home page, enabling attackers to view other users' pages while not logged in.
- CVE-2026-75417High
A SQL injection vulnerability in YzmCMS 7.5 occurs in the get_arrchildid() function in category.class.php. The parentid parameter is directly concatenated into a FIND_IN_SET() SQL clause without proper sanitization, allowing an authenticated administrator to execute arbitrary SQL queries via boolean-based blind injection.
- CVE-2026-13529Medium
A SQL injection vulnerability was found in YzmCMS up to version 7.5 in the file /application/install/index.php. The attack involves manipulating the siteurl argument and can be executed remotely, though it is considered difficult to exploit. The exploit has been publicly disclosed.
- CVE-2025-56304Medium
Cross-site scripting (XSS) vulnerability in YzmCMS through version 7.3, located in the referer header on the registration page. It allows an attacker to inject malicious script into the victim's browser.
- CVE-2021-36712Medium
Cross Site Scripting (XSS) vulnerability in yzmcms 6.1 allows attackers to steal user cookies via the image clipping function.
Original NVD description (English source)
A security vulnerability has been detected in YzmCMS up to 7.5. Affected is the function get_url of the file /yzmphp/yzmphp.php of the component Header Handler. The manipulation of the argument HTTP_HOST leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.