CVE-2026-0279

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://security.paloaltonetworks.com/CVE-2026-0279	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os::::::::

History

13 Jul 2026, 12:43

Type	Values Removed	Values Added
CPE		cpe:2.3:o:paloaltonetworks:pan-os::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
First Time		Paloaltonetworks Paloaltonetworks pan-os
References	~~() https://security.paloaltonetworks.com/CVE-2026-0279 -~~	() https://security.paloaltonetworks.com/CVE-2026-0279 - Vendor Advisory

09 Jul 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-09 19:16

Updated : 2026-07-13 12:43

NVD link : CVE-2026-0279

Mitre link : CVE-2026-0279

CVE.ORG link : CVE-2026-0279

JSON object : View

Products Affected

paloaltonetworks

pan-os

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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{"at": "10.2.13-h23", "status": "unaffected"}, {"at": "10.2.10-h39", "status": "unaffected"}, {"at": "10.2.7-h36", "status": "unaffected"}], "version": "10.2.0", "lessThan": "10.2.18-h8", "versionType": "custom"}], "defaultStatus": "affected"}, {"vendor": "Palo Alto Networks", "product": "Prisma Access", "versions": [{"status": "affected", "changes": [{"at": "12.1.8", "status": "unaffected"}], "version": "12.1.0", "lessThan": "12.1.8", "versionType": "custom"}, {"status": "affected", "version": "11.2.0", "versionType": "custom"}, {"status": "affected", "version": "10.2.0", "versionType": "custom"}], "defaultStatus": "affected"}]}], "published": "2026-07-09T19:16:58.717", "references": [{"url": "https://security.paloaltonetworks.com/CVE-2026-0279", "tags": ["Vendor Advisory"], "source": "psirt@paloaltonetworks.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@paloaltonetworks.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Multiple cross site scripting vulnerabilities in the User-ID\u2122 Authentication Portal (aka Captive Portal) service, GlobalProtect\u2122 gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS\u00ae software enables a malicious unauthenticated user to store or execute malicious JavaScript payload.\n\n\nThe security risk posed by this issue is minimized when the management interface and access to the User-ID\u2122 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 .\n\nThis issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series).\n\nCloud NGFW is not affected by this vulnerability."}], "lastModified": "2026-07-13T12:43:37.907", "configurations": [{"nodes": 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