CVE-2025-56304
MediumCVSS 6.1Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
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.
Risk Assessment
The risk involves potential session theft, redirection to malicious sites, or other actions within the victim's session context, which could compromise data confidentiality and integrity.
Recommendation
Immediately update YzmCMS to a version later than 7.3 that includes a fix for this vulnerability. If an update is not possible, implement filtering and sanitization of the referer header on the registration page.
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-2026-15202Medium
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.
- 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-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)
Cross-site scripting (XSS) vulnerability in YzmCMS thru 7.3 via the referer header in the register page.