EUVD-2026-74346
GHSA-4ww7-q667-367m
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network delivery with no attacker privileges, but active user interaction (extension install via social engineering) required; integrity-only impact from same-origin policy bypass.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
6DescriptionNVD
Incomplete cleanup in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Incomplete cleanup in Google Chrome's Browser component (all versions prior to 153.0.8010.36) enables a remote attacker to bypass the web same-origin policy via a crafted Chrome extension, contingent on social engineering the victim into installing it. The integrity impact is high - a successful attacker can tamper with cross-origin web content - while confidentiality and availability are unaffected per the CVSS vector (C:N/A:N). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) the victim is running Google Chrome prior to version 153.0.8010.36; and (2) the attacker successfully social-engineers the victim into deliberately installing a specifically crafted malicious Chrome extension - this is explicit in the description and reflected in UI:R. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 6.5 (Medium) is consistent with Chromium's own 'Medium' severity designation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Google Chrome to version 153.0.8010.36 or later, which contains the incomplete-cleanup fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-459 – Incomplete Cleanup
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External POC / Exploit Code
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