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CVE-2018-16983
NoScript Classic before 5.1.8.7, as used in Tor Browser 7.x and other products, allows attackers to bypass script blocking via the…
Critical9.8EPSS 3.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
NoScript Classic before 5.1.8.7, as used in Tor Browser 7.x and other products, allows attackers to bypass script blocking via the text/html;/json Content-Type value.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.1% · top 12% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (3)
- https://noscript.net/getit#classic (opens in a new tab)x_refsource_MISCx_transferred
- https://twitter.com/Zerodium/status/1039127214602641409 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.zdnet.com/article/exploit-vendor-drops-tor-browser-zero-day-on-twitter/ (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-16983)Record last updated .