OpenClaw before 2026.5.12 contains a cross-site scripting vulnerability in exported session HTML that preserves unsafe javascript: and data: links in generated content.
Date: 2026-06
Affected: openclaw/openclaw
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2026-53841
CWE: CWE-83
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

OpenClaw before 2026.5.12 contains a cross-site scripting vulnerability in exported session HTML that preserves unsafe javascript: and data: links in generated content. Attackers can execute browser-side scripts if a trusted operator opens the exported file and activates a malicious link.


Mitigations:

Architectural layers (MAESTRO):