CVE-2026-96680: ByteDance Coze Scraper Extension · Missing Authorization
Source GCVE Database
Public exploit available · CVSS 5.3 Medium.
Data as of 8 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:PExploitation evidence
Disclosed: evidence found.
CVE published 23 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ByteDanceCoze Scraper Extension | Affected
| Fixed in– |
AI-suggested
Users should exercise caution when using the affected extension and consider disabling it until a vendor update is released. Monitor official channels for any future remediation announcements.
Description
A vulnerability exists in ByteDance Coze Scraper Extension up to version 2.0.2 in the External Message Handler component. The flaw involves improper authorization checks in the function chrome.runtime.onMessageExternal.addListener, allowing remote attackers to manipulate certain arguments and bypass authorization. Exploit code is publicly available, but no vendor response or patch has been provided. The CVSS score is 4.3, indicating a low severity risk.
References
- nvd.nist.gov/vuln/detail/CVE-2026-96680 (opens in a new tab)
- github.com/xryj920/chrome_extensions/blob/main/Coze%20Scraper%202.0.2%20Unrestricted%20External%20Message%20Handler%20Allows%20Website-Triggered%20Arbitrary%20URL%20Scraping (opens in a new tab)
- vuldb.com/cve/CVE-2026-96680 (opens in a new tab)
- vuldb.com/submit/904123 (opens in a new tab)
- vuldb.com/vuln/409003 (opens in a new tab)
- vuldb.com/vuln/409003/cti (opens in a new tab)