{"id":"CVE-2026-73084","state":"PUBLISHED","title":"Activepieces: Reflected Cross-Site Scripting in OAuth Redirect Endpoint","description":"Activepieces is an open source AI workflow automation platform. Prior to 0.83.0, the /api/redirect OAuth callback endpoint embeds the user-supplied code query parameter directly into an inline script block without proper escaping. A crafted request to /api/redirect with a malicious code value can break out of the script context and execute arbitrary JavaScript in the Activepieces origin when a logged-in user opens it. An unauthenticated attacker can access the victim's session tokens or make authenticated API calls on the victim's behalf. This issue is fixed in version 0.83.0.","publishedAt":"2026-08-11T16:35:06.492Z","updatedAt":"2026-08-12T22:13:48.236Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["activepieces activepieces"],"affected":[{"vendor":"activepieces","product":"activepieces","versions":[{"version":"< 0.83.0","status":"affected"}]}],"references":["https://github.com/activepieces/activepieces/security/advisories/GHSA-hc39-cm5m-q8g7","https://github.com/activepieces/activepieces/commit/8be4c8d5e6a79ccbaa74815027432a3c8c311385","https://github.com/activepieces/activepieces/releases/tag/0.83.0"],"weaknesses":["CWE-79","CWE-94"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73084.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73084","state":"PUBLISHED","datePublished":"2026-08-11T16:35:06.492Z","dateUpdated":"2026-08-12T22:13:48.236Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-10T19:37:41.445Z"},"containers":{"cna":{"title":"Activepieces: Reflected Cross-Site Scripting in OAuth Redirect Endpoint","descriptions":[{"lang":"en","value":"Activepieces is an open source AI workflow automation platform. Prior to 0.83.0, the /api/redirect OAuth callback endpoint embeds the user-supplied code query parameter directly into an inline script block without proper escaping. A crafted request to /api/redirect with a malicious code value can break out of the script context and execute arbitrary JavaScript in the Activepieces origin when a logged-in user opens it. An unauthenticated attacker can access the victim's session tokens or make authenticated API calls on the victim's behalf. This issue is fixed in version 0.83.0."}],"affected":[{"vendor":"activepieces","product":"activepieces","versions":[{"version":"< 0.83.0","status":"affected"}]}],"references":[{"url":"https://github.com/activepieces/activepieces/security/advisories/GHSA-hc39-cm5m-q8g7","name":"https://github.com/activepieces/activepieces/security/advisories/GHSA-hc39-cm5m-q8g7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/activepieces/activepieces/commit/8be4c8d5e6a79ccbaa74815027432a3c8c311385","name":"https://github.com/activepieces/activepieces/commit/8be4c8d5e6a79ccbaa74815027432a3c8c311385","tags":["x_refsource_MISC"]},{"url":"https://github.com/activepieces/activepieces/releases/tag/0.83.0","name":"https://github.com/activepieces/activepieces/releases/tag/0.83.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-11T16:35:06.492Z"},"source":{"advisory":"GHSA-hc39-cm5m-q8g7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-12T22:07:51.635074Z","id":"CVE-2026-73084","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":"2026-08-12T22:13:48.236Z"}}]}}}