PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface
A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS® software enables a malicious authenticated administrator to store 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.
CVE-2026-0266
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-0266
Cloud NGFW
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
PAN-OS
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Prisma Access
Source reference: /containers/cna/affected/2/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Palo Alto Networks",
"product": "Cloud NGFW",
"versions": [
{
"status": "unaffected",
"version": "All",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"cpes": [
"cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:12.1.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.9:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.8:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.6:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.5:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.1:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.2.0:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.13:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.12:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.11:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.10:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.9:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.8:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.6:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.5:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.1:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:11.1.0:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.18:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.17:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.16:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.15:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.14:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.13:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.12:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.11:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.10:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.9:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.8:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.7:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.6:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.5:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.4:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.3:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.2:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.1:*:*:*:*:*:*:*",
"cpe:2.3:o:palo_alto_networks:pan-os:10.2.0:*:*:*:*:*:*:*"
],
"vendor": "Palo Alto Networks",
"product": "PAN-OS",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "12.1.5",
"status": "unaffected"
}
],
"version": "12.1.0",
"lessThan": "12.1.5",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "11.2.11",
"status": "unaffected"
}
],
"version": "11.2.0",
"lessThan": "11.2.11",
"versionType": "custom"
},
{
"status": "affected",
"changes": [
{
"at": "11.1.14",
"status": "unaffected"
}
],
"version": "11.1.0",
"lessThan": "11.1.14",
"versionType": "custom"
},
{
"status": "affected",
"version": "10.2.0",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "Palo Alto Networks",
"product": "Prisma Access",
"versions": [
{
"status": "unaffected",
"version": "All",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-0266
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #27168 · Revision 1
- Added to Heist Feed
- Publisher date