CVE-2026-24421Public exploitNetwork attack vectorHinoki check available

Sensitive backup generation via missing permission check

Published Jan 24, 2026 · Updated Jan 24, 2026

Missing authorization in phpMyFAQ 4.0.16 and earlier allows remote authenticated users to generate sensitive configuration backups. The /api/setup/backup handler in SetupController.php checks userIsAuthenticated() but omits the configuration or administrator permission check. Any logged-in non-admin can trigger backup creation and obtain the ZIP path; secret exposure additionally requires the archive to be web-accessible.

CVSS severity6.5
Medium
EPSS probability1.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in phpMyFAQ 4.0.16 and earlier allows remote authenticated users to generate sensitive configuration backups. The /api/setup/backup handler in SetupController.php checks userIsAuthenticated() but omits the configuration or administrator permission check. Any logged-in non-admin can trigger backup creation and obtain the ZIP path; secret exposure additionally requires the archive to be web-accessible.

The record

CVE
CVE-2026-24421
Published
Jan 24, 2026
Updated
Jan 24, 2026
Vendor
Thorsten Rinne
Product
phpMyFAQ
Classifications
CWE-862, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 24, 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=< 4.0.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thorsten Rinne · phpMyFAQversion=< 4.0.17

Published CVSS scores

6.5GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1005Data from Local System

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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