Vulnerability Details : CVE-2021-20729
Cross-site scripting vulnerability in pfSense CE and pfSense Plus (pfSense CE software versions 2.5.2 and earlier, and pfSense Plus software versions 21.05 and earlier) allows a remote attacker to inject an arbitrary script via a malicious URL.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-20729
- cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
- cpe:2.3:a:netgate:pfsense_plus:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20729
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20729
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-20729
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20729
-
https://jvn.jp/en/jp/JVN87751554/index.html
JVN#87751554: Multiple vulnerabilities in pfSenseThird Party Advisory;VDB Entry
-
https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc
Third Party Advisory
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