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Back to active CVEs
Low · CVSS 1.1CVE-2026-0308

PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web InterfaceCVE-2026-0308

Answer in brief

CVE-2026-0308 records a Low severity (CVSS 1.1) vulnerability in PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface. The current sources do not mark it as known exploited. The current feed maps Palo Alto Networks/PAN-OS (generic), Siemens/RUGGEDCOM APE1808 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 10, 2026Updated Oct 15, 2026Source checked Oct 25, 2026First seen by HOL Sep 10, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 1.1
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 1.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Palo Alto Networks/PAN-OS (generic), Siemens/RUGGEDCOM APE1808 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Palo Alto Networks/PAN-OSgeneric>=12.1.0 <12.1.10 || >=11.2.0 <11.2.13-h2 || >=11.1.0 <11.1.16-h212.1.10, 11.2.13-h2, 11.1.16-h2
Siemens/RUGGEDCOM APE1808generic>=0 <**

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Palo Alto Networks/PAN-OS, Siemens/RUGGEDCOM APE1808.
  2. 2Review the reported fix. Source-reported workaround: No known workarounds exist for this issue. Customers with a Threat Prevention subscription are provided with limited coverage against this vulnerability by enabling Threat ID 510040 and 510041 (from Applications and Threats content version 9145-10233 and later). For these Threat IDs to protect against attacks for this vulnerability: * Route incoming traffic for the MGT port through a DP port https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#id59206398-3dab-4b2f-9b4b-7ea500d036ba , e.g., enabling management profile on a DP interface for management access. * Replace the Certificate for Inbound Traffic Management https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#id112f7714-8995-4496-bbf9-781e63dec71c . * Decrypt inbound traffic to the management interface so the firewall can inspect it https://docs.paloaltonetworks.com/best-practices/10-1/administrative-access-best-practices/administrative-access-best-practices/deploy-administrative-access-best-practices#idbbd82587-17a2-42b4-9245-d3714e1e13a2 . * Enable threat prevention on the inbound traffic to management services. Please note that this Threat ID requires SSL Decryption.

Evidence timeline and material changes

  1. Published upstream

    Sep 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 10, 2026

Sources and claim methodology

  • Source referencecert-portal.siemens.com
  • Source referencesecurity.paloaltonetworks.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Contact Form by Supsystic < 1.8.0 - Admin+ Stored XSSAlso CWE-79
  • GiveWP < 4.19.0.1 - Give Worker+ Stored XSS via Form Template Primary ColorAlso CWE-79
  • phpIPAM index.php cross site scriptingAlso CWE-79
  • phpIPAM Rack Link Creation show-rack-popup.php create_rack_link cross site scriptingAlso CWE-79
  • onyx-dot-app Onyx PreviewTab.tsx cross site scriptingAlso CWE-79
  • Privoce Vocechat Query Parameter widget.html cross site scriptingAlso CWE-79

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 25, 2026
References
2 linked sources
Open source record