CVE-2026-0279 PAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities (Severity: LOW)

CSIRTS triage

What

There are multiple cross-site scripting (XSS) vulnerabilities.

Who is affected

Users of PAN-OS are affected.

Urgency

Remediation is low urgency as the severity is low.

Action

Update to the latest version of PAN-OS.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Palo Alto Networks Security Advisories (INTL · vendor-psirt · site)

Severity

low

Published

2026-07-08

Exploitation

Not in CISA KEV at last sync

Original advisory: https://security.paloaltonetworks.com/CVE-2026-0279

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Moderate exploitation riskCVE-2026-02791.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 64% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• high[NEW] [high] Palo Alto Networks PAN-OS: Multiple vulnerabilitiescert-bund
• unknownCVE-2026-0279: Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal (aka Captiv…nvd
• unknownPalo Alto Products Multiple Vulnerabilitieshkcert

Recent advisories for PAN-OS

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• high[NEW] [high] Palo Alto Networks PAN-OS: Multiple vulnerabilitiescert-bund · 2026-07-10
• unknownCVE-2026-0287: Multiple denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unau…nvd · 2026-07-09
• unknownCVE-2026-0286: A command injection vulnerability in the management plane of Palo Alto Networks PAN-OS® softwar…nvd · 2026-07-09
• unknownCVE-2026-0285: A server-side request forgery (SSRF) vulnerability in Palo Alto Networks PAN-OS software enable…nvd · 2026-07-09
• unknownCVE-2026-0284: An XML injection vulnerability in the Large Scale VPN (LSVPN) functionality of Palo Alto Networ…nvd · 2026-07-09
• unknownCVE-2026-0283: An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto N…nvd · 2026-07-09

More from Palo Alto Networks Security Advisories

• mediumCVE-2026-0285 PAN-OS: Server-Side Request Forgery Vulnerability in Management Web Interface (Severity: MEDIUM)2026-07-08
• mediumCVE-2026-0286 PAN-OS: Authenticated Command Injection in CLI (Severity: MEDIUM)2026-07-08
• mediumCVE-2026-0278 Prisma Access Agent: Multiple DLP Policy Bypass Vulnerabilities on Windows (Severity: MEDIUM)2026-07-08
• mediumCVE-2026-0284 PAN-OS: XML Injection Vulnerability in Large Scale VPN (LSVPN) (Severity: MEDIUM)2026-07-08
• lowCVE-2026-0276 Cortex XDR Broker VM: Privilege Escalation (PE) Vulnerability (Severity: LOW)2026-07-08