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.

Attack Vector Local

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00033.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Palo Alto Networks Cloud NGFW unaffected
Version Status Constraints
All unaffected —
Palo Alto Networks PAN-OS unaffected
Version Status Constraints
12.1.0 affected < 12.1.5
11.2.0 affected < 11.2.11
11.1.0 affected < 11.1.14
10.2.0 affected —
Palo Alto Networks Prisma Access unaffected
Version Status Constraints
All unaffected —

No data.

No data.

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Vendors Products
Palo Alto Networks Subscribe
Cloud Ngfw Subscribe
Pan-os Subscribe
Prisma Access Subscribe

Project Subscriptions

Vendors Products
Palo Alto Networks Subscribe
Cloud Ngfw Subscribe
Pan-os Subscribe
Prisma Access Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://security.paloaltonetworks.com/CVE-2026-0266 cve-icon cve-icon
History

Thu, 11 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 10 Jun 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Palo Alto Networks cloud Ngfw
Palo Alto Networks prisma Access
Vendors & Products Palo Alto Networks cloud Ngfw
Palo Alto Networks prisma Access

Wed, 10 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
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.
Title PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface
First Time appeared Palo Alto Networks
Palo Alto Networks pan-os
Weaknesses CWE-79
CPEs cpe:2.3:o:palo_alto_networks:pan-os:*:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.0:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.11:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.12:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.13:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.14:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.15:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.16:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.17:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.18:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.1:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.2:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.3:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.4:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.5:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.6:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.7:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.8:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:10.2.9:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.0:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.10:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.11:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.12:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.13:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.1:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.2:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.3:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.4:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.5:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.6:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.8:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.1.9:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.0:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.1:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.3:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*
cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:*:*:*:*:*:*:*
Vendors & Products Palo Alto Networks
Palo Alto Networks pan-os
References
Metrics cvssV4_0

{'score': 0.4, 'vector': 'CVSS: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:Amber'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: palo_alto

Published:

Updated: 2026-06-11T14:36:48.227Z

Reserved: 2025-11-03T20:44:26.433Z

Link: CVE-2026-0266

cve-icon Vulnrichment

Updated: 2026-06-11T14:34:54.172Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-10T22:16:52.787

Modified: 2026-06-11T15:21:30.653

Link: CVE-2026-0266

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T23:30:44Z

Weaknesses