CVE-2020-11457: netgate pfsense Cross-site Scripting
CVSS: 5.4v3.1MediumModified
Published 01-04-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-11457 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in netgate pfsense. EPSS estimates a 9.28% chance of exploitation in the next 30 days, higher than 95.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.4/10
010
Medium · v3.1 (NVD)EPSS score
9.28%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database
Timeline
- 01-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
pfSense before 2.4.5 has stored XSS in system_usermanager_addprivs.php in the WebGUI via the descr parameter (aka full name) of a user.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 5.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
9.28%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
0.00 pp
From 9.28% on 20-09-2026
20-09-202620-10-2026
EPSS score9.28%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundpfSense 2.4.4-P3 - 'User Manager' Persistent Cross-Site Scripting
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Netgate1 product
- pfsense< 2.4.5
1 vendor · 1 product
References
4 links- www.netgate.com/assets/downloads/advisories/pfSense-SA-20_06.webgui.ascX Refsource MISCPatchVendor Advisory
- github.com/pfsense/pfsense/commit/3c1e53dabe966f27c9097a5a923e77f49ae5fffaX Refsource MISCPatchThird Party Advisory