Vulnerability · Published Jun 5, 2026 · Assigned by GitHub_M

CVE-2026-46401HAX CMS PHP has Insufficient Session Expiration

Medium 5.3

In plain English

A medium-severity security flaw in issues from haxtheweb. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.3%top 75.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Versions prior to 26.0.0 suffer from an improper session termination vulnerability where authentication tokens remain valid after user logout. This allows attackers who obtain valid tokens to maintain persistent access to authenticated CMS functionality, bypassing the intended session termination mechanism and enabling unauthorized access to CMS metadata and administrative functions. Version 26.0.0 fixes the issue.

Affected products (as reported)

Vendor	Product	Versions
haxtheweb	issues	< 26.0.0

Weakness: CWE-613 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/haxtheweb/issues/security/advisories/GHSA-g5rc-4gpf-wx3w x_refsource_CONFIRM