Vulnerability · Published Mar 25, 2020 · Assigned by mozilla
CVE-2020-6810
Medium 4.3
In plain English
A medium-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)1.0%top 36.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
After a website had entered fullscreen mode, it could have used a previously opened popup to obscure the notification that indicates the browser is in fullscreen mode. Combined with spoofing the browser chrome, this could have led to confusing the user about the current origin of the page and credential theft or other attacks. This vulnerability affects Firefox < 74.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.21 | firefox | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.22 | firefox | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.23 | firefox | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.21 | librewolf | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.22 | librewolf | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.23 | librewolf | 74.0-r0 | ALPINE-CVE-2020-6810 |
| Alpine:v3.24 | librewolf | 74.0-r0 | ALPINE-CVE-2020-6810 |
Affected products (as reported)
References
- https://www.mozilla.org/security/advisories/mfsa2020-08/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1432856 x_refsource_MISC