Medium severity · published Oct 15, 2026
CVE-2026-111232
Netgate pfSense CE 2.3.0 through 2.9.0 Stored XSS via Separator Color
4.8
CVSS
1%
EPSS
No
On KEV
Description
Netgate pfSense CE 2.3.0 through 2.9.0 contains a stored cross-site scripting vulnerability that allows authenticated users with Firewall: Rules or NAT: Port Forward privileges to inject scripts via the separator color field. Attackers can submit a crafted separator[] color value that display_separator() renders unencoded into class attributes, executing in administrators' browsers to perform WebGUI actions with their privileges.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PC
pfSense CE · Netgate
2.3.0 through 2.9.0 · source: vendor
PF
Pfsense · Pfsense
2.3.0 through 2.9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111232
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111232
Issue Tracking
https://abraxaslabs.tech/research/pfsense-ce-leftovers
Third Party Advisory
https://github.com/abraxas/pfsense-separator-color-xss
Product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/filter.inc#L6238-L6252
Product
https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/firewall_rules.php#L236-L245
Third Party Advisory
https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.3.0-through-2.9.0-stored-xss-via-separator-color
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