CVE-2026-63303 (GCVE-0-2026-63303)
Vulnerability from cvelistv5 – Published: 2026-07-28 10:43 – Updated: 2026-07-28 12:21
VLAI
EPSS
VEX
Title
Path Traversal in Quick.CMS
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 12:20 UTC
CWE
- CWE-23 - Relative path traversal
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/07/CVE-2026-63301 | third-party-advisory |
| https://opensolution.org/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| OpenSolution | Quick.CMS |
Affected:
0 , ≤ 6.8.0
(semver)
|
guessed |
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