CVE-2026-96680 ByteDance Coze Scraper Extension External Message index.js chrome.runtime.onMessageExternal.addListener authorization

Medium 5.3 Published Updated

Remote attackers can manipulate scraper configurations via external messages due to missing authorization checks in the ByteDance Coze Scraper Extension.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-96680?

CVE-2026-96680 is a medium-severity missing authorization vulnerability in ByteDance Coze Scraper Extension, published on 23 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability was detected in ByteDance Coze Scraper Extension up to 2.0.2. Affected by this vulnerability is the function chrome.runtime.onMessageExternal.addListener of the file static/background/index.js of the component External Message Handler. The manipulation of the argument body.url/paginationConfig/xPathConfig/body.urls/xPaths results in missing authorization. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-863, CWE-862

Which versions are affected by CVE-2026-96680?

How do I fix CVE-2026-96680?

No fix has been published for CVE-2026-96680 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-96680 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-96680 exists.

Sources

Also known as GHSA-8fch-9xj9-6929.

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