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CVE

CVE-2026-55879

OpenReplay: Unauthenticated stored XSS leads to dashboard account takeover
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CVE

CVE-2026-55879

OpenReplay: Unauthenticated stored XSS leads to dashboard account takeover

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/openreplay/openreplay/releases/tag/v1.25.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55879.json, https://github.com/openreplay/openreplay/security/advisories/GHSA-3mfc-7hf4-jfxh, https://nvd.nist.gov/vuln/detail/CVE-2026-55879, https://github.com/openreplay/openreplay/commit/ec41f4425a99c478a4418adbd2f094ab6a8b0daf

Severity

9.3

CVSS Score
0
10

Basic Information

Base CVSS
9.3
EPSS Probability
0.00499%
EPSS Percentile
0.40509%
Introduced Version
57503eec89bc34a3017917990f9296899e20c41c
Fix Available
ec41f4425a99c478a4418adbd2f094ab6a8b0daf

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