Medium
Document Gallery 4.1 - 5.1.1 - Unauthenticated Document Thumbnail Replacement via Thumber Webhook Signature Bypass
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.
Announced Group revision 1
Original source ↗CVE-2026-74922
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74922
Document Gallery
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "Document Gallery",
"versions": [
{
"status": "affected",
"version": "4.1",
"versionType": "semver",
"lessThanOrEqual": "5.1.1"
}
],
"collectionURL": "https://wordpress.org/plugins",
"defaultStatus": "unknown"
}
]- Related CVEs
- CVE-2026-74922
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #37746 · Revision 1
- Added to Heist Feed
- Publisher date