What’s Vulnerable › Vulnerabilities

CVE-2021-24859: User Meta Shortcodes <= 0.5 - Contributor+ Unauthorized Arbitrary User Metadata Access

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-13 · updated 2026-06-17
• Weakness: CWE-284

Description

The User Meta Shortcodes WordPress plugin through 0.5 registers a shortcode that allows any user with a role as low as contributor to access other users metadata by specifying the user login as a parameter. This makes the WP instance vulnerable to data extrafiltration, including password hashes

Affected products

• User meta shortcodes: through 0.5

References

• https://wpscan.com/vulnerability/958f44a5-07e7-4349-9212-2a039a082ba0
• https://wpscan.com/vulnerability/958f44a5-07e7-4349-9212-2a039a082ba0

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