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.

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Tue, 11 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
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.
Title Activepieces: Reflected Cross-Site Scripting in OAuth Redirect Endpoint
Weaknesses CWE-79
CWE-94
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-11T16:35:06.492Z

Reserved: 2026-08-10T19:37:41.445Z

Link: CVE-2026-73084

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-08-11T17:19:16.420

Modified: 2026-08-11T17:19:16.420

Link: CVE-2026-73084

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses