Vulnerability-Lookup

GHSA-5WCV-J62R-8FP5

Vulnerability from github – Published: 2026-07-28 12:31 – Updated: 2026-07-28 12:31

Details

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

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

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JSON

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  "affected": [],
  "aliases": [
    "CVE-2026-63303"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-23"
    ],
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    "github_reviewed_at": null,
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  },
  "details": "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\u00a0can 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.\n\n\nThe vendor assessed the likelihood of exploitation as very low and determined that a fix is\u00a0not necessary.",
  "id": "GHSA-5wcv-j62r-8fp5",
  "modified": "2026-07-28T12:31:21Z",
  "published": "2026-07-28T12:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63303"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/en/posts/2026/07/CVE-2026-63301"
    },
    {
      "type": "WEB",
      "url": "https://opensolution.org"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-63303 (GCVE-0-2026-63303)

Vulnerability from cvelistv5 – Published: 2026-07-28 10:43 – Updated: 2026-07-28 12:21

Title

Path Traversal in Quick.CMS

Summary

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

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

CERT-PL ENISA root

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
OpenSolution	Quick.CMS	Affected: 0 , ≤ 6.8.0 (semver)

Credits

Karol Czubernat

Show details on NVD website

JSON

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                "id": "CVE-2026-63303",
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                  },
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                "timestamp": "2026-07-28T12:20:47.511436Z",
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          "url": "https://opensolution.org/"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-5WCV-J62R-8FP5

CVE-2026-63303 (GCVE-0-2026-63303)

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