PAN-OS XSS via Admin Web UI on PA/VM-Series
CVE-2026-0316 Published on October 14, 2026
PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability
A stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store or execute a JavaScript payload using the web interface.
The security risk posed by this issue is minimized when the management interface 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 and Prisma® Access are not affected by these vulnerabilities.
Vulnerability Analysis
CVE-2026-0316 is exploitable with network access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Timeline
Initial publication.
Weakness Type
What is a XSS Vulnerability?
The software 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.
CVE-2026-0316 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-0316
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Affected Versions
Palo Alto Networks Cloud NGFW:- Version All is unaffected.
- Version 12.2.0 and below 12.2.4 is affected.
- Version 12.1.0 and below 12.1.10-h2 is affected.
- Version 11.2.0 and below 11.2.16 is affected.
- Version 11.1.0 and below 11.1.16-h3 is affected.
- Version All and below 12.1.7-h8 is unaffected.