# eRoom – Webinar & Meeting Plugin for Zoom, Google Meet, Microsoft Teams <= 1.7.1 - Unauthenticated Zoom Meeting Host Role Escalation via Signature Generation

- **ID:** WPSEC-2026-1412
- **Plugin:** eRoom – Webinar & Meeting Plugin for Zoom, Google Meet, Microsoft Teams (`eroom-zoom-meetings-webinar`), https://wordpress.org/plugins/eroom-zoom-meetings-webinar/
- **Affected versions:** all versions before 1.7.2
- **Fixed in:** 1.7.2 (Update to 1.7.2 or later.)
- **Severity:** Medium 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
- **Weakness:** CWE-639
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-21)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/eroom-zoom-meetings-webinar
- **Fix released:** 2026-10-20
- **Published:** 2026-10-21
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1412/

## Description

The eRoom plugin for WordPress is vulnerable to Privilege Escalation via the stm_zoom_meeting_sign AJAX action in all versions up to, and including, 1.7.1, due to the generate_signature() function taking the Zoom participant role from the request body without checking it. This makes it possible for unauthenticated attackers to obtain a Zoom Meeting SDK signature with the host role (role=1) for any published meeting or webinar, which, depending on the Zoom account's settings, can let them join that meeting with host privileges.

## References

- https://wpsec.com/vuln/WPSEC-2026-1412/
- https://plugins.svn.wordpress.org/eroom-zoom-meetings-webinar/tags/1.7.2/
- https://wordpress.org/plugins/eroom-zoom-meetings-webinar/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1412/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.