CVE-2026-54347

HIGH 8.7

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

CVSS Score

8.7

EPSS Score

0.0%

EPSS Percentile

0th

Froxlor is open source server administration software. Prior to 2.3.8, DNS TXT record content accepted by lib/Froxlor/Api/Commands/DomainZones.php can contain HTML special characters, lib/Froxlor/UI/Callbacks/Text.php returns the content from Text::wordwrap without HTML escaping, and templates/Froxlor/table/table.html.twig renders the callback result with the raw filter. An authenticated customer with DNS editor access can store JavaScript-bearing content in a TXT record. When an administrator views the affected domain's DNS configuration, the payload executes automatically in the administrator's browser session, which can expose session data or perform privileged panel actions. This issue is fixed in version 2.3.8.

CWE	CWE-79
Vendor	froxlor
Product	froxlor
Published	Aug 18, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

froxlor / froxlor

< 2.3.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/froxlor/froxlor/security/advisories/GHSA-43gm-9rr3-cx7g github.com: https://github.com/froxlor/froxlor/commit/a1d8f425b11ef7597949018814afa056a842cba0 github.com: https://github.com/froxlor/froxlor/releases/tag/2.3.8