ByteDance Coze Scraper Extension External Message index.js chrome.runtime.onMessageExternal.addListener authorization
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.3%
exploitation probability
0.3%top 84% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
ByteDance · Coze Scraper Extension⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/xryj920/chrome_extensions/blob/main/Coze%20Scraper%202.0.2%20Unrestricted%20External%20Message%20Handler%20Allows%20Website-Triggered%20Arbitrary%20URL%20Scrapinghttps://vuldb.com/cve/CVE-2026-96680https://vuldb.com/submit/904123https://vuldb.com/vuln/409003https://vuldb.com/vuln/409003/cti