CVE-2026-0266

PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface

State
Published
Severity
1.1 Low
Published
Jun 10, 2026
Updated
Oct 15, 2026
Reserved
Nov 3, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.01.1 LowCVSS: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/AU:N/R:U/V:D/RE:M/U:Amberpalo_alto
4.00.4 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amberpalo_alto

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
Cloud NGFWPalo Alto Networks
  • AllNot affected
PAN-OSPalo Alto Networks
  • 12.1.0 to before 12.1.5Affectedfrom 12.1.5Not affected
  • 11.2.0 to before 11.2.11Affectedfrom 11.2.11Not affected
  • 11.1.0 to before 11.1.14Affectedfrom 11.1.14Not affected
  • 10.2.0Affected
Prisma AccessPalo Alto Networks
  • AllNot affected

References

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