{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33738","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-23T17:34:57.561Z","datePublished":"2026-03-26T20:25:44.648Z","dateUpdated":"2026-03-27T13:55:55.702Z"},"containers":{"cna":{"title":"Lychee Vulnerable to Stored XSS via Photo Description in RSS/Atom/JSON Feed (No Sanitization on Public Endpoint)","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:H/SI:L/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9j"},{"name":"https://github.com/LycheeOrg/Lychee/pull/4218","tags":["x_refsource_MISC"],"url":"https://github.com/LycheeOrg/Lychee/pull/4218"},{"name":"https://github.com/LycheeOrg/Lychee/commit/d2e2606a0223d5a384d5b806db1b31eb587adc5c","tags":["x_refsource_MISC"],"url":"https://github.com/LycheeOrg/Lychee/commit/d2e2606a0223d5a384d5b806db1b31eb587adc5c"},{"name":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.5.3","tags":["x_refsource_MISC"],"url":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.5.3"}],"affected":[{"vendor":"LycheeOrg","product":"Lychee","versions":[{"version":"< 7.5.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-26T20:25:44.648Z"},"descriptions":[{"lang":"en","value":"Lychee is a free, open-source photo-management tool. Prior to version 7.5.3, the photo `description` field is stored without HTML sanitization and rendered using `{!! $item->summary !!}` (Blade unescaped output) in the RSS, Atom, and JSON feed templates. The `/feed` endpoint is publicly accessible without authentication, allowing any RSS reader to execute attacker-controlled JavaScript. Version 7.5.3 fixes the issue."}],"source":{"advisory":"GHSA-5574-7f3r-hm9j","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9j","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-27T13:35:56.585454Z","id":"CVE-2026-33738","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-27T13:55:55.702Z"}}]}}