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PHP CVE-2026-24420

MEDIUM
Improper Access Control (CWE-284)
2026-01-24 security-advisories@github.com GHSA-7p9h-m7m8-vhhv
PHP Phpmyfaq
6.5
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:59 vuln.today
PoC Detected
Jan 28, 2026 - 18:25 vuln.today
Public exploit code
CVE Published
Jan 24, 2026 - 03:16 nvd
MEDIUM 6.5

DescriptionGitHub Advisory

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

AnalysisAI

Authenticated users in phpMyFAQ 4.0.16 and below can bypass permission checks to download FAQ attachments they should not have access to, due to improper validation of authorization tokens in attachment.php and flawed permission logic. An attacker with valid credentials but without the dlattachment permission can exploit this to retrieve sensitive attachment content. …

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Vulnerability AssessmentAI

Risk Assessment CVSS 6.5 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker without authentication could exploit this vulnerability to unauthorized access.
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CVE-2026-24420 vulnerability details – vuln.today
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