CVE-2026-63303
MediumCVSS 5.1Exploitation Probability (EPSS)
Low risk32th percentile - higher than 32% of all known CVEs
Summary
Quick.CMS is vulnerable to Path Traversal via the URI path component of HTTP requests. An authenticated attacker with admin privileges can read files in the parent directory of the webroot using ../ sequences in the URI.
Risk Assessment
An attacker can access sensitive configuration files or data outside the webroot.
Recommendation
The vendor does not plan a fix; apply additional protections such as WAF rules blocking ../ sequences.
Other vulnerabilities in Quick.CMS
See all- CVE-2024-58308Critical
Quick.CMS 6.7 contains a SQL injection vulnerability that allows unauthenticated attackers to bypass login authentication by manipulating the login form. Attackers can inject specific SQL payloads like ' or '1'='1 to gain unauthorized administrative access to the system.
- CVE-2026-33385Medium
A Blind SQL injection vulnerability has been identified in Quick.CMS. Improper neutralization of input provided by a high-privileged user into multiple fields in the administration panel allows for Blind SQL Injection attacks. The vendor states that remediation was not deemed necessary due to the trust model.
- CVE-2026-63302Medium
Quick.CMS is vulnerable to Local File Inclusion (LFI) in the admin.php endpoint via the p parameter. An authenticated attacker with admin privileges can include arbitrary files within the application's directory structure, revealing directory structure and absolute paths.
- CVE-2026-63301High
In Quick.CMS, the admin UI restricts deletion of the primary language, but the API endpoint lacks server-side authorization. An authenticated admin can send a direct HTTP request to delete the primary language, causing Denial of Service (DoS). Combined with a CSRF vulnerability (CVE-2026-1468), an unauthenticated attacker can trick an admin into clicking a malicious link, triggering DoS.
- CVE-2026-11860High
Quick.CMS deserializes user-controlled data received over plaintext HTTP without ensuring integrity or authenticity. Attackers can tamper with serialized payloads in transit and inject malicious objects, leading to remote code execution. Exploitation is triggered automatically when an administrator accesses the admin panel.
Original NVD description (English source)
A Path Traversal vulnerability exists in Quick.CMS through the URI path component of HTTP requests, where the server fails to normalize dot-dot-slash (../) sequences before resolving and serving the requested file. An authenticated attacker with admin privileges can use this vulnerability to read contents of files located in the sibling directory of the webroot via a crafted HTTP request containing ../ sequences in the URI. The vendor assessed the likelihood of exploitation as very low and determined that a fix is not necessary.