Vulnerability Details : CVE-2020-4020
The file downloading functionality in the Atlassian Companion App before version 1.0.0 allows remote attackers, who control a Confluence Server instance that the Companion App is connected to, execute arbitrary .exe files via a Protection Mechanism Failure.
Products affected by CVE-2020-4020
- cpe:2.3:a:atlassian:companion:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-4020
0.63%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-4020
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST |
References for CVE-2020-4020
-
https://jira.atlassian.com/browse/CONFSERVER-59733
[CONFSERVER-59733] Protection Mechanism Failure in file downloading in Companion - CVE-2020-4020 - Create and track feature requests for Atlassian products.Vendor Advisory
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