EUVD-2026-74425
GHSA-5jfr-9xvq-fx78
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network delivery of crafted extension requires victim interaction (UI:R); no attacker privileges needed; integrity-only impact with no confidentiality or availability effect.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
6DescriptionCVE.org
Incorrect authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Incorrect authorization in Google Chrome's Extensions subsystem (prior to 153.0.8010.36) allows a remote attacker to bypass system access restrictions by delivering a crafted Chrome extension to a victim who interacts with it. The flaw, rooted in CWE-863 (Incorrect Authorization), enables integrity violations - specifically circumventing the permissions and access controls that govern what extension code can do on the host system. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a victim running Google Chrome below 153.0.8010.36 to install or interact with a crafted Chrome extension (UI:R), making social engineering or a deceptive Web Store submission a prerequisite. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N, score 6.5) reflects a network-reachable flaw requiring no attacker privileges but mandating victim interaction (UI:R) - the user must install or interact with the crafted extension. … 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 | Vendor-released patch: Chrome 153.0.8010.36. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
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External POC / Exploit Code
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