Description
A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store a JavaScript payload using the web interface. This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by this vulnerability.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
https://security.paloaltonetworks.com/CVE-2026-0266
Scores
CVSS v4
1.1
EPSS
0.0021
EPSS Percentile
11.5%
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/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
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (6)
Palo Alto Networks/Cloud NGFW
All
Palo Alto Networks/PAN-OS
10.2.0
Palo Alto Networks/PAN-OS
11.1.0 - 11.1.14
Palo Alto Networks/PAN-OS
11.2.0 - 11.2.11
Palo Alto Networks/PAN-OS
12.1.0 - 12.1.5
Palo Alto Networks/Prisma Access
All
Published
Jun 10, 2026
Tracked Since
Jun 11, 2026