CVE-2026-0308: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Palo Alto Networks Cloud NGFW
CVE-2026-0308 is a stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS software that affects PA-Series and VM-Series firewalls and Panorama (virtual and M-Series). It allows a malicious authenticated administrator to store or execute JavaScript payloads via the web interface. Cloud NGFW and Prisma Access are not affected. The vulnerability has a low severity score and no known exploits in the wild. No patch or official remediation guidance is currently provided.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-0308) involves improper neutralization of input during web page generation (CWE-79) in Palo Alto Networks PAN-OS software. An authenticated administrator can store malicious JavaScript code in the web interface, leading to stored cross-site scripting. The issue affects PA-Series and VM-Series firewalls and Panorama (virtual and M-Series), but not Cloud NGFW or Prisma Access. The CVSS 4.0 base score is 1.1, indicating low severity. No vendor advisory or patch information is currently available.
Potential Impact
The impact is limited to authenticated administrators who can inject stored JavaScript payloads into the web interface, potentially leading to cross-site scripting attacks. The CVSS score of 1.1 reflects low severity, indicating limited impact and exploitability. There are no known exploits in the wild. Cloud NGFW and Prisma Access are not affected, reducing the scope of impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, administrators should follow Palo Alto Networks' future advisories for updates. Until a fix is available, limit administrative access to trusted personnel and monitor for unusual web interface behavior.
CVE-2026-0308: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Palo Alto Networks Cloud NGFW
Description
CVE-2026-0308 is a stored cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS software that affects PA-Series and VM-Series firewalls and Panorama (virtual and M-Series). It allows a malicious authenticated administrator to store or execute JavaScript payloads via the web interface. Cloud NGFW and Prisma Access are not affected. The vulnerability has a low severity score and no known exploits in the wild. No patch or official remediation guidance is currently provided.
CVSS v4.0
Score 1.1low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-0308) involves improper neutralization of input during web page generation (CWE-79) in Palo Alto Networks PAN-OS software. An authenticated administrator can store malicious JavaScript code in the web interface, leading to stored cross-site scripting. The issue affects PA-Series and VM-Series firewalls and Panorama (virtual and M-Series), but not Cloud NGFW or Prisma Access. The CVSS 4.0 base score is 1.1, indicating low severity. No vendor advisory or patch information is currently available.
Potential Impact
The impact is limited to authenticated administrators who can inject stored JavaScript payloads into the web interface, potentially leading to cross-site scripting attacks. The CVSS score of 1.1 reflects low severity, indicating limited impact and exploitability. There are no known exploits in the wild. Cloud NGFW and Prisma Access are not affected, reducing the scope of impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, administrators should follow Palo Alto Networks' future advisories for updates. Until a fix is available, limit administrative access to trusted personnel and monitor for unusual web interface behavior.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- palo_alto
- Date Reserved
- 2025-11-03T20:45:07.021Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa24938acd9273b49a57d63
Added to database: 09/10/2026, 06:07:52 UTC
Last enriched: 09/10/2026, 06:23:08 UTC
Last updated: 09/10/2026, 06:26:29 UTC
Views: 4
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