CVE-2026-74922 — Document Gallery 4.1 - 5.1.1 - Unauthenticated Document Thumbnail Replacement via Thumber Webhook Signature Bypass

CVE-2026-74922

Document Gallery 4.1 - 5.1.1 - Unauthenticated Document Thumbnail Replacement via Thumber Webhook Signature Bypass PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Unknown / Document Gallery	affected 4.1 through 5.1.1

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/850aaa4e-82ff-479f-bdcd-6cb8089325bd/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.