CVE-2026-0279

MEDIUM

Palo Alto Networks Cloud Ngfw - XSS

Title source: rule

Description

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v3 6.1

EPSS 0.0117

EPSS Percentile 63.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (9)

Palo Alto Networks/Cloud NGFW All

Palo Alto Networks/PAN-OS 10.2.0 - 10.2.18-h8

Palo Alto Networks/PAN-OS 11.1.0 - 11.1.16

Palo Alto Networks/PAN-OS 11.2.0 - 11.2.13

Palo Alto Networks/PAN-OS 12.1.0 - 12.1.8

Palo Alto Networks/Prisma Access 10.2.0

Palo Alto Networks/Prisma Access 11.2.0

Palo Alto Networks/Prisma Access 12.1.0 - 12.1.8

paloaltonetworks/pan-os 10.2.0 - 11.1.16

Published Jul 09, 2026

Tracked Since Jul 10, 2026