CVE-2026-74922: CWE-345 Insufficient Verification of Data Authenticity in Document Gallery
Description
The Document Gallery WordPress plugin through 5.1.1 does not verify the signature on one of its unauthenticated webhook endpoints when no shared secret has been configured, which is the default state, allowing unauthenticated users to replace the thumbnail image the site publishes for any document.
CVSS v3.1
Score 5.3medium
Affected software
Document Gallery
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Document Gallery WordPress plugin through version 5.1.1 contains an insufficient verification of data authenticity vulnerability (CWE-345). Specifically, one of its webhook endpoints does not verify the signature if no shared secret is configured, which is the default configuration. This flaw allows unauthenticated attackers to replace thumbnail images for documents by sending crafted requests to the webhook endpoint.
Potential Impact
An attacker can replace the thumbnail image displayed for any document on the affected site without authentication. This impacts the integrity of the content presentation but does not affect confidentiality or availability. There is no indication of further exploitation or active exploits in the wild.
Mitigation Recommendations
No official patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. As a mitigation, site administrators should configure a shared secret for the webhook endpoint to enable signature verification and prevent unauthenticated modifications.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-17T11:27:43.418Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad5c0f22cdf04f65622784e
Added to database: 10/19/2026, 07:04:18 UTC
Last enriched: 10/19/2026, 07:18:47 UTC
Last updated: 10/19/2026, 09:50:42 UTC
Views: 5
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