CVE-2026-15810

Cross-Site Scripting (XSS) in Looker allows Admin Account Takeover

Published Jul 24, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
A Cross-Site Scripting (XSS) vulnerability in Google Cloud Looker versions prior to 25.6.103, 25.12.65, 25.18.68, 26.0.66, 26.2.47, 26.4.36, 26.6.28, and 26.8.7 on Looker-hosted and Self-hosted allows an attacker to execute arbitrary JavaScript leading to administrative account takeover using a maliciously crafted URL.


Looker-hosted and Self-hosted were found to be vulnerable.
This issue has already been mitigated for Looker-hosted instances. No user action is required for these.


Self-hosted instances must be upgraded to the patched versions: 25.6.103+, 25.12.65+, 25.18.68+, 26.0.66+, 26.2.47+, 26.4.36+, 26.6.28+, or 26.8.7+.

Remediation

Vendor Solution

This vulnerability has been mitigated for Looker-hosted instances, and no user action is required. For Self-hosted Looker instances, customers should upgrade to one of the patched versions or later: 25.6.103+, 25.12.65+, 25.18.68+, 26.0.66+, 26.2.47+, 26.4.36+, 26.6.28+, or 26.8.7+.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Google
Google cloud Looker
Vendors & Products Google
Google cloud Looker
Type Values Removed Values Added
Description A Cross-Site Scripting (XSS) vulnerability in Google Cloud Looker versions prior to 25.6.103, 25.12.65, 25.18.68, 26.0.66, 26.2.47, 26.4.36, 26.6.28, and 26.8.7 on Looker-hosted and Self-hosted allows an attacker to execute arbitrary JavaScript leading to administrative account takeover using a maliciously crafted URL. Looker-hosted and Self-hosted were found to be vulnerable. This issue has already been mitigated for Looker-hosted instances. No user action is required for these. Self-hosted instances must be upgraded to the patched versions: 25.6.103+, 25.12.65+, 25.18.68+, 26.0.66+, 26.2.47+, 26.4.36+, 26.6.28+, or 26.8.7+.
Title Cross-Site Scripting (XSS) in Looker allows Admin Account Takeover
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/U:Amber'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GoogleCloud
Published
Updated
Jul 24, 2026, 12:35 PM
Reserved
Jul 15, 2026, 10:03 AM
Status
Awaiting Analysis
Published
Jul 24, 2026, 12:16 PM
Modified
Oct 24, 2026, 1:10 PM