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CVE-2023-40332: WordPress WP-PostRatings plugin <= 1.91 - Rating limit Bypass vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-04 · updated 2026-06-17
• Weakness: CWE-799

Description

Improper Control of Interaction Frequency vulnerability in Lester ‘GaMerZ’ Chan WP-PostRatings allows Functionality Misuse.This issue affects WP-PostRatings: from n/a through 1.91.

Affected products

• Lester ‘GaMerZ’ Chan WP-PostRatings: before 1.91.1 — fixed in 1.91.1

How to fix

Upgrade to a fixed version: Lester ‘GaMerZ’ Chan WP-PostRatings 1.91.1. Check the vendor advisory for mitigations.

References

• https://patchstack.com/database/vulnerability/wp-postratings/wordpress-wp-postratings-plugin-1-91-rating-limit-bypass-vulnerability?_s_id=cve
• https://patchstack.com/database/vulnerability/wp-postratings/wordpress-wp-postratings-plugin-1-91-rating-limit-bypass-vulnerability?_s_id=cve

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