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CVE-2021-36880: WordPress uListing plugin <= 2.0.3 - Unauthenticated SQL Injection (SQLi) vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-09-27 · updated 2026-06-17
• Weakness: CWE-89

Description

Unauthenticated SQL Injection (SQLi) vulnerability in WordPress uListing plugin (versions <= 2.0.3), vulnerable parameter: custom.

Affected products

• Stylemix uListing: through 2.0.3

References

• https://patchstack.com/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-3-unauthenticated-sql-injection-sqli-vulnerability
• https://wordpress.org/plugins/ulisting/#developers
• https://patchstack.com/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-3-unauthenticated-sql-injection-sqli-vulnerability
• https://wordpress.org/plugins/ulisting/#developers

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