CVE-2020-20389

CVE-2020-20389 is a medium-severity vulnerability in Get-simple Getsimplecms with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Description

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

Frequently asked questions

What is CVE-2020-20389?
Cross Site Scripting (XSS) vulnerability in GetSimpleCMS 3.4.0a in admin/edit.php.
How severe is CVE-2020-20389?
CVE-2020-20389 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-20389 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-20389?
CVE-2020-20389 affects Get-simple Getsimplecms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-20389?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-20389 published?
CVE-2020-20389 was published on 2021-06-23 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Get-simple Getsimplecms

All CVEs affecting Get-simple Getsimplecms →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →