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PatchSiren cyber security CVE debrief

CVE-2026-46401 haxtheweb CVE debrief

CVE-2026-46401 is a MEDIUM severity vulnerability in HAX CMS, a microsite universe management system, which allows attackers to maintain persistent access to authenticated CMS functionality after a user logs out. This is due to an improper session termination mechanism, where authentication tokens remain valid even after logout.

Vendor
haxtheweb
Product
issues
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-07-23
Advisory published
2026-06-05
Advisory updated
2026-07-23

Who should care

Users of HAX CMS, especially those using versions prior to 26.0.0, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability has a CVSS score of 5.3 and is classified as CWE-613. It allows attackers with valid tokens to bypass the intended session termination mechanism and access CMS metadata and administrative functions.

Defensive priority

MEDIUM

Recommended defensive actions

  • Upgrade to version 26.0.0 or later of HAX CMS.
  • Review and update authentication token management to ensure proper session termination.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively. Additional information is available at [ref-4].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46401 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46401

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46401 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46401

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.