How severe is CVE-2026-24420?

CVE-2026-24420 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-24420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24420?

CVE-2026-24420 affects Phpmyfaq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24420?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-24420 have an EU (EUVD) identifier?

Yes. CVE-2026-24420 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4259.

When was CVE-2026-24420 published?

CVE-2026-24420 was published on 2026-01-24 and last updated on 2026-06-17.

CVE-2026-24420

CVE-2026-24420 is a medium-severity vulnerability in Phpmyfaq with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4259
Weakness: CWE-284
Affected product: Phpmyfaq
Published: 2026-01-24
Last modified: 2026-06-17

Description

phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below allow an authenticated user without the dlattachment permission to download FAQ attachments due to a incomprehensive permissions check. The presence of a right key is improperly validated as proof of authorization in attachment.php. Additionally, the group and user permission logic contains a flawed conditional expression that may allow unauthorized access. This issue has been fixed in version

Frequently asked questions

What is CVE-2026-24420?: phpMyFAQ is an open source FAQ web application. Versions 4.0.16 and below allow an authenticated user without the dlattachment permission to download FAQ attachments due to a incomprehensive permissions check. The presence of a right key is improperly validated as proof of authorization in attachment.php. Additionally, the group and user permission logic contains a flawed conditional expression that may allow unauthorized access. This issue has been fixed in version
How severe is CVE-2026-24420?: CVE-2026-24420 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-24420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24420?: CVE-2026-24420 affects Phpmyfaq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24420 have an EU (EUVD) identifier?: Yes. CVE-2026-24420 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4259.
When was CVE-2026-24420 published?: CVE-2026-24420 was published on 2026-01-24 and last updated on 2026-06-17.

References

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-7p9h-m7m8-vhhv

Affected products (1)

cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*

More vulnerabilities in Phpmyfaq

CVE-2023-5865 — Critical (CVSS 9.8): Insufficient Session Expiration in GitHub repository thorsten/phpmyfaq prior to 3.2.2.
CVE-2023-5227 — Critical (CVSS 9.8): Unrestricted Upload of File with Dangerous Type in GitHub repository thorsten/phpmyfaq prior to 3.1.8.
CVE-2023-4006 — Critical (CVSS 9.8): Improper Neutralization of Formula Elements in a CSV File in GitHub repository thorsten/phpmyfaq prior to 3.1.16.
CVE-2023-2429 — Critical (CVSS 9.8): Improper Access Control in GitHub repository thorsten/phpmyfaq prior to 3.1.13.
CVE-2023-0311 — Critical (CVSS 9.8): Improper Authentication in GitHub repository thorsten/phpmyfaq prior to 3.1.10.
CVE-2023-0307 — Critical (CVSS 9.8): Weak Password Requirements in GitHub repository thorsten/phpmyfaq prior to 3.1.10.

All CVEs affecting Phpmyfaq →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →