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CVE-2020-6803

21
FAUCET Score

CVE-2020-6803 describes an open redirect vulnerability affecting the Mozilla WebThings Gateway. This flaw allows an unauthenticated attacker to redirect a user to an arbitrary malicious website after they log in. Rated as MEDIUM severity (CVSS 6.1), the attack requires user interaction and could lead to information disclosure or manipulation. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2020-02-26CPE matchmatch criteria
cpe:2.3:a:mozilla:webthings_gateway:*:*:*:*:*:*:*:*
>= 0.12.0, < 0.12.0CPE match
cpe:2.3:a:mozilla:webthings_gateway:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
48.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 52nd percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / mozilla-iot/gateway/pull/2446
PatchThird Party Advisory