Vulnerability · Published Jul 28, 2026 · Assigned by CERT-PL

CVE-2026-63302Local File Inclusion in Quick.CMS

Medium 5.1

In plain English

A medium-severity security flaw in Quick.CMS from OpenSolution. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 4.0)5.1Medium

Exploit odds (30 days)0.5%top 55.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 located within the application's directory structure via a crafted HTTP request. Successful exploitation allows disclosure of the server's directory structure and absolute file paths (path disclosure). The vendor assessed the likelihood of exploitation as very low and determined that a fix is not necessary.

Affected products (as reported)

Vendor	Product	Versions
OpenSolution	Quick.CMS	0 – through 6.8.0

Weakness: CWE-98 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

https://cert.pl/en/posts/2026/07/CVE-2026-63301 third-party-advisory
https://opensolution.org/ product