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Vulnerabilities

Vulnerability · CVE-2025-12739

An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script.

Published Nov 24, 2025 · catalog updated Nov 24, 2025 · Google Cloud Looker

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-12739 is not in CISA KEV. FIRST estimates a 33.00% chance of exploitation in the next 30 days. Check whether you run Google Cloud Looker.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
33.00%
Remediation
Version ranges on file
Affected products
vendor Google Cloud Looker 0 <25.6.66

An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script. Exploitation required at least one Looker extension installed on the instance. 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 as soon as possible. This vulnerability has been patched in all supported versions of Self-hosted. The versions below have all been updated to protect from this vul

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Google Cloud Looker 0 <25.6.660 <25.6.66

How to fix CVE-2025-12739

  • Upgrade

    CVE-2025-12739 lists a fix boundary at 25.6.66. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 0 <25.6.66

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-12739 is not in CISA KEV. FIRST estimates a 33.00% chance of exploitation in the next 30 days. Check whether you run Google Cloud Looker.

Which versions are affected?

Compare what you have installed with Google Cloud Looker 0 <25.6.66 0 <25.6.66. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 33.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 24, 2025 · EUVD

    Detected

    An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script. Exploitation required at least one Looker extension installed on the instance. 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. Sel

  2. Nov 24, 2025 · EUVD

    Updated

    An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script. Exploitation required at least one Looker extension installed on the instance. 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. Sel

Sources

  • CVE.orgVulnerability recordCVE-2025-12739

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-198626

    An attacker with viewer permissions in Looker could craft a malicious URL that, when opened by a Looker admin, would execute an attacker-supplied script. Exploitation required at least one Looker extension installed on the instance. Looker-hosted and Self-hosted were found to be

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 24, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 28, 2026
  • EUVDOct 28, 2026