CVE-2026-0279

Description

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captive Portal) service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payload. The security risk posed by this issue is minimized when the management interface and access to the User-ID™ Authentication Portal 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 is not affected by this vulnerability.

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Produits concernés

• Palo Alto Networks Cloud NGFW
• Palo Alto Networks PAN-OS
• Palo Alto Networks Prisma Access
• Siemens RUGGEDCOM APE1808
• Paloaltonetworks pan-os

Scores CVSS

Faiblesses (CWE)

• CWE-79

Références

• https://security.paloaltonetworks.com/CVE-2026-0279 Vendor Advisory
• https://cert-portal.siemens.com/productcert/html/ssa-104023.html

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories