CVE-2021-20729

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc Third Party Advisory
https://jvn.jp/en/jp/JVN87751554/index.html Third Party Advisory VDB Entry
https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc Third Party Advisory
https://jvn.jp/en/jp/JVN87751554/index.html Third Party Advisory VDB Entry
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:netgate:pfsense_plus:*:*:*:*:*:*:*:*
cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
History

21 Nov 2024, 05:47

Type Values Removed Values Added
References () https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc - Third Party Advisory () https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc - Third Party Advisory
References () https://jvn.jp/en/jp/JVN87751554/index.html - Third Party Advisory, VDB Entry () https://jvn.jp/en/jp/JVN87751554/index.html - Third Party Advisory, VDB Entry

08 Apr 2022, 02:26

Type Values Removed Values Added
References (MISC) https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc - (MISC) https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.asc - Third Party Advisory
References (MISC) https://jvn.jp/en/jp/JVN87751554/index.html - (MISC) https://jvn.jp/en/jp/JVN87751554/index.html - Third Party Advisory, VDB Entry
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.1
CPE cpe:2.3:a:netgate:pfsense_plus:*:*:*:*:*:*:*:*
cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*
CWE CWE-79

31 Mar 2022, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-03-31 08:15

Updated : 2024-11-21 05:47

NVD link : CVE-2021-20729

Mitre link : CVE-2021-20729

CVE.ORG link : CVE-2021-20729

JSON object : View

Products Affected

netgate

  • pfsense_plus

pfsense

  • pfsense
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')