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CVE-2020-6804
XSS in Mozilla WebThings Gateway
High8.8EPSS 0.75%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A reflected XSS vulnerability exists within the gateway, allowing an attacker to craft a specialized URL which could steal the user's authentication token. When combined with CVE-2020-6803, an attacker could fully compromise the system.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| mozillaCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.75% · top 45% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
- affected 0.3.0 – < 0.3.0*
- affected 0.12.0 – < 0.12.0
What to do
Solution: https://github.com/mozilla-iot/gateway/pull/2446
Workaround: * Never share your gateway address publicly. * Never click on links which take you to your gateway, especially to the login page.
References (1)
- https://github.com/mozilla-iot/gateway/pull/2446 (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-2020-6804)Record last updated .