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Advisory severityMedium4.8Vendor: LowPalo Alto Networks

Medium [CVE-2026-0308] PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface

This medium-severity Palo Alto Networks advisory covers CVE-2026-0308 affecting PAN-OS.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-0308 Source published

VulniPulse record published Record updated

CVE-2026-0308
Affected products & platforms
Palo Alto NetworksPAN-OSFirewallPAN-OS / Panorama
Open source advisory

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Summary

CVE-2026-0308 PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface

Affected versions
  • PAN-OS < 12.1.10
  • PAN-OS < 11.2.13-h2
  • PAN-OS < 11.1.16-h2

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Fixed versions
  • PAN-OS >= 12.1.10
  • PAN-OS >= 11.2.13-h2
  • PAN-OS >= 11.1.16-h2

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • VersionMinor VersionSuggested SolutionCloud NGFW No action needed.PAN-OS 12.2 No action needed.
  • PAN-OS 12.1 12.1.2 through 12.1.9 Upgrade to 12.1.10 or later.
  • PAN-OS 11.2 11.2.0 through 11.2.13 Upgrade to 11.2.13-h2 or later.
  • PAN-OS 11.1 11.1.0 through 11.1.16 Upgrade to 11.1.16-h2 or later.
Temporary workarounds
  • No known workarounds exist for this issue.
  • Customers with a Threat Prevention subscription are provided with limited coverage against this vulnerability by enabling Threat ID 510040 and 510041 (from Applications and Threats content version 9145-10233 and later).
  • For these Threat IDs to protect against attacks for this vulnerability:
  • Please note that this Threat ID requires SSL Decryption.

Official advisory · high-confidence parse· fetched 13 days ago·verify at source

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