CVE-2021-20729
MEDIUM
6.1
CVSS Score
Published: March 31, 2022 at 07:20 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
3 products affected across 2 vendorsPfsensepfSense PluspfSense CE and pfSense Plus
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Severity
MEDIUM6.1
Exploit prediction
EPSS 3%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 21.05
v ≤ 2.5.2
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://docs.netgate.com/downloads/pfSense-SA-21_02.captiveportal.ascx_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
https://jvn.jp/en/jp/JVN87751554/index.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
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