# Popularis Extra <= 1.2.10 - Cross-Site Request Forgery to Plugin Activation

- **ID:** WPSEC-2026-2819
- **Plugin:** Popularis Extra (`popularis-extra`), https://wordpress.org/plugins/popularis-extra/
- **Affected versions:** all versions before 1.2.11
- **Fixed in:** 1.2.11 (Update to 1.2.11 or later.)
- **Severity:** Medium 4.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-352
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-11-10)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/popularis-extra
- **Fix released:** 2026-11-09
- **Published:** 2026-11-10
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2819/

## Description

The Popularis Extra plugin for WordPress is vulnerable to Cross-Site Request Forgery via the popularis_ajax_required_plugins_activate AJAX action in all versions up to, and including, 1.2.10, due to missing nonce validation in the ajax_required_plugins_activate() function. This makes it possible for unauthenticated attackers to activate any plugin already installed on the site through a forged request, provided they can trick a site administrator into performing an action such as clicking a link.

## References

- https://wpsec.com/vuln/WPSEC-2026-2819/
- https://plugins.svn.wordpress.org/popularis-extra/tags/1.2.11/
- https://wordpress.org/plugins/popularis-extra/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2819/

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.