1.3

CVE-2026-0279

PAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captive Portal) service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payload.


The security risk posed by this issue is minimized when the management interface and access to the User-ID™ Authentication Portal is restricted to only trusted internal IP addresses according to our recommended  best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 .

This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).

Cloud NGFW is not affected by this vulnerability.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerPalo Alto Networks
≫
Produkt Cloud NGFW
Default Statusunaffected
Version All
Status unaffected
HerstellerPalo Alto Networks
≫
Produkt PAN-OS
Default Statusaffected
Version 12.1.0
Version < 12.1.8
Status affected
Version 11.2.0
Version < 11.2.13
Status affected
Version 11.1.0
Version < 11.1.16
Status affected
Version 10.2.0
Version < 10.2.18-h8
Status affected
HerstellerPalo Alto Networks
≫
Produkt Prisma Access
Default Statusaffected
Version 12.1.0
Version < 12.1.8
Status affected
Version 11.2.0
Status affected
Version 10.2.0
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.17% 0.637
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@paloaltonetworks.com 1.3 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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.

https://security.paloaltonetworks.com/CVE-2026-0279