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CVE-2026-0256

A stored 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 impacted by this vulnerability.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a0feb4c50685d2db7d219dfd0db3ec1f35c9fead8bdfda34e61bafc2fe293701
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"cpes":["cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:*","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:11.2.11:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h5:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h4:*:*:*:*…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"RUGGEDCOM APE1808","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/adp/1/affected/0

{"defaultStatus":"unaffected","product":"Cloud NGFW","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/affected/2

Affected products and versions

4 source assertions
{"cpes":["cpe:2.3:o:palo_alto_networks:pan-os:12.1.6:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.5:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h3:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:12.1.4:h2:*:*:*:*:*:*","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:11.2.11:*:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h5:*:*:*:*:*:*","cpe:2.3:o:palo_alto_networks:pan-os:11.2.10:h4:*:*:*:*…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"RUGGEDCOM APE1808","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/adp/1/affected/0
{"defaultStatus":"unaffected","product":"Cloud NGFW","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"Prisma Access","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"All","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NO","Recovery":"USER","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":4.4,"baseSeverity":"MEDIUM","exploitMaturity":"UNREPORTED","privilegesRequired":"HIGH","providerUrgency":"AMBER","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"DIFFUSE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityI…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-967325.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/adp/1/references/0
{"tags":["vendor-advisory"],"url":"https://security.paloaltonetworks.com/CVE-2026-0256"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d2979899cc47807c018f27fde60e9b49fac929796738788c6bcf45e373e9825 · sha256:d14c1190bdcfeb78… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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