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

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Sep 10, 2026 · NIST NVD

   Detected

   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. 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.

2. Oct 15, 2026 · NIST NVD

   Updated

   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. 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.

Sources

• CVE.orgVulnerability recordCVE-2026-0308

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-0308

  30-day exploitation probability 0.3%

  first.org
• NIST NVDVulnerability recordCVE-2026-0308

  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. This issue is applicable to PAN-OS software on PA-Series and VM-Series fire

  nvd.nist.gov
• Palo Alto NetworksVendor advisoryCVE-2026-0308
  security.paloaltonetworks.com

References

• Reference · cert-portal.siemens.com
• Reference · security.paloaltonetworks.com