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CVE-2021-36879: WordPress uListing plugin <= 2.0.5 - Unauthenticated Privilege Escalation vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-27 · updated 2026-06-17
• Weakness: CWE-264

Description

Unauthenticated Privilege Escalation vulnerability in WordPress uListing plugin (versions <= 2.0.5). Possible if WordPress configuration allows user registration.

Affected products

• Stylemix uListing: through 2.0.5

References

• https://patchstack.com/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-5-unauthenticated-privilege-escalation-vulnerability
• https://wordpress.org/plugins/ulisting/#developers
• https://patchstack.com/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-5-unauthenticated-privilege-escalation-vulnerability
• https://wordpress.org/plugins/ulisting/#developers

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