{"id":"CVE-2026-33209","state":"PUBLISHED","title":"Avo has a XSS vulnerability on `return_to` param","description":"Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. This issue has been patched in version 3.30.3.","publishedAt":"2026-03-20T22:39:19.422Z","updatedAt":"2026-03-24T18:07:25.007Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["avo-hq avo"],"affected":[{"vendor":"avo-hq","product":"avo","versions":[{"version":"< 3.30.3","status":"affected"}]}],"references":["https://github.com/avo-hq/avo/security/advisories/GHSA-762r-27w2-q22j","https://github.com/avo-hq/avo/pull/4330","https://github.com/avo-hq/avo/commit/4453d39ddc6309f3bc8ada73ef21e1971112de7d","https://github.com/avo-hq/avo/releases/tag/v3.30.3"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33209.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33209","state":"PUBLISHED","datePublished":"2026-03-20T22:39:19.422Z","dateUpdated":"2026-03-24T18:07:25.007Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-17T23:23:58.312Z"},"containers":{"cna":{"title":"Avo has a XSS vulnerability on `return_to` param","descriptions":[{"lang":"en","value":"Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. This issue has been patched in version 3.30.3."}],"affected":[{"vendor":"avo-hq","product":"avo","versions":[{"version":"< 3.30.3","status":"affected"}]}],"references":[{"url":"https://github.com/avo-hq/avo/security/advisories/GHSA-762r-27w2-q22j","name":"https://github.com/avo-hq/avo/security/advisories/GHSA-762r-27w2-q22j","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/avo-hq/avo/pull/4330","name":"https://github.com/avo-hq/avo/pull/4330","tags":["x_refsource_MISC"]},{"url":"https://github.com/avo-hq/avo/commit/4453d39ddc6309f3bc8ada73ef21e1971112de7d","name":"https://github.com/avo-hq/avo/commit/4453d39ddc6309f3bc8ada73ef21e1971112de7d","tags":["x_refsource_MISC"]},{"url":"https://github.com/avo-hq/avo/releases/tag/v3.30.3","name":"https://github.com/avo-hq/avo/releases/tag/v3.30.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/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":"2026-03-20T22:39:19.422Z"},"source":{"advisory":"GHSA-762r-27w2-q22j","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-24T18:06:50.463947Z","id":"CVE-2026-33209","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-24T18:07:25.007Z"}}]}}}