{"id":"CVE-2026-74922","title":"Document Gallery 4.1 - 5.1.1 - Unauthenticated Document Thumbnail Replacement via Thumber Webhook Signature Bypass","summary":"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 re…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-345"],"product":"Document Gallery","affected":["document_gallery >= 4.1 <= 5.1.1"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-19T09:26:11.113813Z"},"published":"2026-10-19","updated":"2026-10-19","sourceUpdated":"2026-10-19T09:31:21.524Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74922","references":[{"url":"https://wpscan.com/vulnerability/850aaa4e-82ff-479f-bdcd-6cb8089325bd/"}],"tags":["cve.org"],"ingestedAt":"2026-10-19T07:09:59.591Z","slug":"CVE-2026-74922","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `document_gallery >= 4.1 <= 5.1.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}