CVE-2026-55879

OpenReplay is a self-hosted session replay suite. From 1.24.0 before 1.25.0, the OpenReplay tracking SDK accepts custom event names and captured page URLs from any visitor using a public project key, stores them in ClickHouse without output encoding, and later renders them in the authenticated dashboard through TextEllipsis and the event-details modal, allowing an unauthenticated attacker to store script that executes in the dashboard origin, reads the session JWT from localStorage, and takes over a dashboard account. This issue is fixed in version 1.25.0.

CVSS v3 9.3 CRITICAL

9.3^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/openreplay/openreplay/commit/ec41f4425a99c478a4418adbd2f094ab6a8b0daf
https://github.com/openreplay/openreplay/releases/tag/v1.25.0
https://github.com/openreplay/openreplay/security/advisories/GHSA-3mfc-7hf4-jfxh

Configurations

No configuration.

History

10 Jul 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-10 21:16

Updated : 2026-07-13 18:12

NVD link : CVE-2026-55879

Mitre link : CVE-2026-55879

CVE.ORG link : CVE-2026-55879

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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