What’s Vulnerable › Vulnerabilities

CVE-2020-23837

• Severity: high (CVSS 8.8 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: 2020-09-25 · updated 2026-06-17
• Weakness: CWE-352

Description

A Cross-Site Request Forgery (CSRF) vulnerability in the Multi User plugin 1.8.2 for GetSimple CMS allows remote attackers to add admin (or other) users after an authenticated admin visits a third-party site or clicks on a URL.

Affected products

• Multi User Project Multi User: 1.8.2

References

• http://get-simple.info/extend/plugin/multi-user/133/
• https://www.exploit-db.com/exploits/48745
• http://get-simple.info/extend/plugin/multi-user/133/
• https://www.exploit-db.com/exploits/48745

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