Vulnerability · Published Aug 18, 2026 · Assigned by GitHub_M

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

High 8.7

In plain English

A high-severity cross-site scripting in froxlor from froxlor. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.7High

Exploit odds (30 days)0.4%top 63.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	froxlor/froxlor	2.3.8	GHSA-43gm-9rr3-cx7g

Affected products (as reported)

Vendor	Product	Versions
froxlor	froxlor	< 2.3.8

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References

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