{"id":"CVE-2026-33738","state":"PUBLISHED","title":"Lychee Vulnerable to Stored XSS via Photo Description in RSS/Atom/JSON Feed (No Sanitization on Public Endpoint)","description":"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.","publishedAt":"2026-03-26T20:25:44.648Z","updatedAt":"2026-03-27T13:55:55.702Z","severity":{"score":4.8,"label":"Medium","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["LycheeOrg Lychee"],"affected":[{"vendor":"LycheeOrg","product":"Lychee","versions":[{"version":"< 7.5.3","status":"affected"}]}],"references":["https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9j","https://github.com/LycheeOrg/Lychee/pull/4218","https://github.com/LycheeOrg/Lychee/commit/d2e2606a0223d5a384d5b806db1b31eb587adc5c","https://github.com/LycheeOrg/Lychee/releases/tag/v7.5.3"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33738.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33738","state":"PUBLISHED","datePublished":"2026-03-26T20:25:44.648Z","dateUpdated":"2026-03-27T13:55:55.702Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-23T17:34:57.561Z"},"containers":{"cna":{"title":"Lychee Vulnerable to Stored XSS via Photo Description in RSS/Atom/JSON Feed (No Sanitization on Public Endpoint)","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."}],"affected":[{"vendor":"LycheeOrg","product":"Lychee","versions":[{"version":"< 7.5.3","status":"affected"}]}],"references":[{"url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9j","name":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5574-7f3r-hm9j","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/LycheeOrg/Lychee/pull/4218","name":"https://github.com/LycheeOrg/Lychee/pull/4218","tags":["x_refsource_MISC"]},{"url":"https://github.com/LycheeOrg/Lychee/commit/d2e2606a0223d5a384d5b806db1b31eb587adc5c","name":"https://github.com/LycheeOrg/Lychee/commit/d2e2606a0223d5a384d5b806db1b31eb587adc5c","tags":["x_refsource_MISC"]},{"url":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.5.3","name":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.5.3","tags":["x_refsource_MISC"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-26T20:25:44.648Z"},"source":{"advisory":"GHSA-5574-7f3r-hm9j","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-27T13:55:55.702Z"}}]}}}