# CVE-2026-101161: WP Ultimate Review unauthenticated denial of service in review shortcode

Source: https://junglewise.ai/threats/cve-2026-101161-the-wp-ultimate-review-wordpress-plugin-before-2-4-4-does-not  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-03. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-101161 · Severity: high · CVSS 7.5 · Published 2026-10-03

WP Ultimate Review is a WordPress plugin that allows users to add reviews to pages and posts. An attacker can submit crafted review content without authentication, causing the reviewed page to crash with a fatal error every time it is visited, resulting in a denial-of-service attack against site visitors when the plugin's display settings have not been configured.

Technologies: [WP Ultimate Review](https://junglewise.ai/threats/technologies/wp-ultimate-review-wp-ultimate-review). Vendors: [WP Ultimate Review](https://junglewise.ai/threats/vendors/wp-ultimate-review).

## Quick answers

**Is CVE-2026-101161 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101161 being exploited in the wild.

**How severe is CVE-2026-101161?** High severity, with a CVSS score of 7.5, published 3 October 2026.

**Which products and versions are affected?** WP Ultimate Review before 2.4.4.

**Is there a fix for CVE-2026-101161?** Yes: fixed in 2.4.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-101161 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-101161?** Check whether you run WP Ultimate Review 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.

## How to fix

- Fixed in 2.4.4

## Technical details

The plugin fails to validate review content submitted by unauthenticated users and does not prevent the storage of payloads that trigger fatal errors during page rendering via the wp-reviews shortcode. The vulnerability only manifests when the plugin's review display settings have never been saved (default configuration). Exploitation requires only network access and no authentication.

## Affected products

- WP Ultimate Review WP Ultimate Review before 2.4.4

## Timeline

- 2026-10-01: disclosed
- 2026-10-03: advisory

## References

- [https://wpscan.com/vulnerability/c1c3e2d7-4833-4e51-a3c7-45e6d036a525/](https://wpscan.com/vulnerability/c1c3e2d7-4833-4e51-a3c7-45e6d036a525/)

## Related threats

- [WP Ultimate Review arbitrary shortcode execution](https://junglewise.ai/threats/cve-2026-103519-the-the-wp-ultimate-review-plugin-for-wordpress-is-vulnerable-to)
- [WP Ultimate Review input validation flaw in review rating](https://junglewise.ai/threats/cve-2026-101160-the-wp-ultimate-review-wordpress-plugin-before-2-4-4-does-not)
- [WP Ultimate Review stored cross-site scripting in review form](https://junglewise.ai/threats/cve-2026-101159-the-wp-ultimate-review-wordpress-plugin-before-2-4-4-does-not)
- [WP Ultimate Review arbitrary shortcode execution](https://junglewise.ai/threats/cve-2026-92235-the-the-wp-ultimate-review-plugin-for-wordpress-is-vulnerable-to)