{"id":"CVE-2026-58200","title":"Payload Plugins is a collection of plugins designed to enhance Payload CMS","summary":"Payload Plugins is a collection of plugins designed to enhance Payload CMS. From 0.3.0 until 0.4.0, @jhb.software/payload-cloudinary-plugin deployments with clientUploads enabled expose POST /api/cloudinary-generate-signature, whose hand…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","cwe":["CWE-347"],"vendor":"jhb-software","product":"payload-plugins","affected":["payload-plugins >= 0.3.0, < 0.4.0"],"published":"2026-09-15","updated":"2026-09-15","sourceUpdated":"2026-09-15T20:17:24.827","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-58200","references":[{"url":"https://github.com/jhb-software/payload-plugins/commit/da2325901c5eeced17d33a1b2e647e300b8cbff2","label":"security-advisories@github.com"},{"url":"https://github.com/jhb-software/payload-plugins/pull/155","label":"security-advisories@github.com"},{"url":"https://github.com/jhb-software/payload-plugins/releases/tag/cloudinary@0.4.0","label":"security-advisories@github.com"},{"url":"https://github.com/jhb-software/payload-plugins/security/advisories/GHSA-h5x8-xp6m-x6q4","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-15T18:57:42.458955Z"},"ingestedAt":"2026-09-15T16:40:03.396Z","epss":0.00185,"epssPercentile":0.08359,"slug":"CVE-2026-58200","body":"## Overview\n\nPayload Plugins is a collection of plugins designed to enhance Payload CMS. From 0.3.0 until 0.4.0, @jhb.software/payload-cloudinary-plugin deployments with clientUploads enabled expose POST /api/cloudinary-generate-signature, whose handler in cloudinary/src/getGenerateSignature.ts passes attacker-controlled body.paramsToSign directly to cloudinary.utils.api_sign_request without a key allowlist, collection policy, timestamp freshness check, or configured-folder enforcement. Any authenticated Payload user can obtain a valid Cloudinary HMAC-SHA1 signature for unauthorized parameters such as overwrite, type, notification_url, invalidate, folder, and public_id. The signature can authorize asset replacement, upload visibility changes, callbacks to attacker-selected URLs, cache invalidation, and uploads outside the intended folder. The client-visible Cloudinary API key is expected by the upload design, but the unrestricted server-side signature supplies the authorization value needed to complete these operations. This vulnerability is fixed in 0.4.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}