What’s Vulnerable › Vulnerabilities

CVE-2020-20389

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-23 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross Site Scripting (XSS) vulnerability in GetSimpleCMS 3.4.0a in admin/edit.php.

Affected products

• GetSimpleCMS: 3.4.0-a1

References

• https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1321
• https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1321

Get alerted when CVE-2020-20389 or the next vulnerability affects your stack