Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/activepieces/activepieces/commit/8be4c8d5e6a79ccbaa7481502743
- https://github.com/activepieces/activepieces/releases/tag/0.83.0
- https://github.com/activepieces/activepieces/security/advisories/GHSA-hc39-cm5m-
FAQ
What is CVE-2026-73084?
CVE-2026-73084 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 ...
How severe is CVE-2026-73084?
CVE-2026-73084 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73084?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.