CVE-2026-46401Public exploitNetwork attack vector

Persistent authenticated access via unrevoked logout tokens

Published Jun 5, 2026 · Updated Jun 5, 2026

Improper session termination in HAX CMS PHP before 26.0.0 allows remote authenticated users to retain CMS access with logged-out tokens. The logout endpoint clears only client-side state and neither revokes nor blacklists user_token values, so authenticated API endpoints accept them until their original TTL expires. Exploitation requires a previously issued token and permits continued reading of CMS metadata and site structure after the legitimate session ends, with no reported integrity or availability impact.

CVSS severity5.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper session termination in HAX CMS PHP before 26.0.0 allows remote authenticated users to retain CMS access with logged-out tokens. The logout endpoint clears only client-side state and neither revokes nor blacklists user_token values, so authenticated API endpoints accept them until their original TTL expires. Exploitation requires a previously issued token and permits continued reading of CMS metadata and site structure after the legitimate session ends, with no reported integrity or availability impact.

The record

CVE
CVE-2026-46401
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
HAXTheWeb
Product
HAXcms (PHP)
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 26.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HAXTheWeb · HAXcms (PHP)version=< 26.0.0

Published CVSS scores

5.3GitHub, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.004Web Session Cookie

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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