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CVE-2026-54347: Froxlor: Stored XSS in DNS TXT Record Content Allows Customer-to-Admin Account Takeover

August 18, 2026

A stored Cross-Site Scripting (XSS) vulnerability in Froxlor’s DNS editor allows an authenticated user with DNS editor access (customer role) to inject arbitrary JavaScript into any administrator’s browser session. When an administrator views the DNS configuration of an affected domain, the payload executes automatically — enabling complete admin account takeover, credential theft, and full server compromise.


References

  • github.com/advisories/GHSA-43gm-9rr3-cx7g
  • github.com/froxlor/froxlor/commit/a1d8f425b11ef7597949018814afa056a842cba0
  • github.com/froxlor/froxlor/releases/tag/2.3.8
  • github.com/froxlor/froxlor/security/advisories/GHSA-43gm-9rr3-cx7g
  • nvd.nist.gov/vuln/detail/CVE-2026-54347

Code Behaviors & Features

Detect and mitigate CVE-2026-54347 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 2.3.8

Fixed versions

  • 2.3.8

Solution

Upgrade to version 2.3.8 or above.

Impact 8.7 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/froxlor/froxlor/CVE-2026-54347.yml

Spotted a mistake? Edit the file on GitLab.

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