Vulnerability · Published Aug 18, 2026 · Assigned by GitHub_M

CVE-2026-52793Froxlor: API Authentication bypasses 2FA Authentication

High 8.1

In plain English

A high-severity improper authentication in froxlor from froxlor. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.3%top 74.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Froxlor is open source server administration software. Prior to 2.3.7, the API authentication path in lib/Froxlor/Api/FroxlorRPC.php and FroxlorRPC::validateAuth accepts an API key and secret for an administrator or customer account without checking type_2fa, validating a TOTP code, or invoking FroxlorTwoFactorAuth. The web interface requires a second factor for accounts with two-factor authentication enabled, but the API grants access after validating only the API credentials, expiration, API permission, and account status. An attacker who obtains an API key and secret for a protected account can call the available API functions without supplying the configured second factor, which can expose or modify customer data, domains, email and FTP accounts, databases, DNS records, and certificate material. This issue is fixed in version 2.3.7.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	froxlor/froxlor	2.3.7	GHSA-f9rx-7wf7-jr36

Affected products (as reported)

Vendor	Product	Versions
froxlor	froxlor	<.3.7

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/froxlor/froxlor/security/advisories/GHSA-f9rx-7wf7-jr36 x_refsource_CONFIRM
https://github.com/froxlor/froxlor/commit/7fc21dc6f8d22673e4ddc765b710c9d3f85cb001 x_refsource_MISC
https://github.com/froxlor/froxlor/releases/tag/2.3.7 x_refsource_MISC