# CVE-2026-40781: ReviewX WordPress plugin authentication bypass

Source: https://junglewise.ai/threats/cve-2026-40781-reviewx-wordpress-plugin-authentication-bypass  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-15. Updated: 2026-06-15  
License: CC BY 4.0 with a link back

CVE-2026-40781 · Severity: high · CVSS 7.5 · Published 2026-06-15

ReviewX, a WordPress plugin used for managing customer reviews, contains a security flaw that allows unauthorized individuals to bypass authentication. An attacker could exploit this to perform actions typically reserved for administrators, potentially leading to a full takeover of the website. This could result in the loss of site control, unauthorized content changes, or disruption of business operations.

Vendors: [WPDeveloper](https://junglewise.ai/threats/vendors/wpdeveloper).

## Quick answers

**Is CVE-2026-40781 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40781 being exploited in the wild.

**How severe is CVE-2026-40781?** High severity, with a CVSS score of 7.5, published 15 June 2026.

**Which products and versions are affected?** WPDeveloper ReviewX <= 2.3.6.

**Is there a fix for CVE-2026-40781?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-40781 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-40781?** Check whether you run WPDeveloper ReviewX at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

ReviewX versions up to and including 2.3.6 are vulnerable to an authentication bypass (CWE-288) via an alternate path or channel. The vulnerability allows an unauthenticated remote attacker to bypass security checks and perform actions that should be restricted to high-privileged users. According to the advisory, this could lead to unauthorized administrative access to the WordPress site. The issue is resolved in version 2.3.7. The attack vector is network-based with low complexity and requires no user interaction or prior privileges.

## Affected products

- ReviewX ReviewX <= 2.3.6

## Timeline

- 2026-03-11: other: Reported by Jakub Herman
- 2026-04-22: advisory: Initial Patchstack advisory published
- 2026-06-15: disclosed: NVD publication date

## References

- [https://patchstack.com/database/wordpress/plugin/reviewx/vulnerability/wordpress-reviewx-plugin-2-3-6-broken-authentication-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/reviewx/vulnerability/wordpress-reviewx-plugin-2-3-6-broken-authentication-vulnerability?_s_id=cve)