CVE-2020-15682 — Origin Validation Error in Mozilla Firefox
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 67.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 22
Latest updateMay 24
Description
When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitability: 2.8 | Impact: 3.6
Affected Packages5 packages
🔴Vulnerability Details
2GHSA▶
GHSA-hx45-gw2r-332x: When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in↗2022-05-24
OSV▶
CVE-2020-15682: When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in↗2020-10-22