How severe is CVE-2020-27478?

CVE-2020-27478 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2020-27478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27478?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2020-27478 have an EU (EUVD) identifier?

Yes. CVE-2020-27478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-19988.

When was CVE-2020-27478 published?

CVE-2020-27478 was published on 2024-04-30 and last updated on 2026-06-17.

CVE-2020-27478

CVE-2020-27478 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-19988
Weakness: CWE-79
Published: 2024-04-30
Last modified: 2026-06-17

Description

Cross Site Scripting vulnerability found in Simplcommerce v.40734964b0811f3cbaf64b6dac261683d256f961 thru 3103357200c70b4767986544e01b19dbf11505a7 allows a remote attacker to execute arbitrary code via a crafted script to the search bar feature.

Frequently asked questions

What is CVE-2020-27478?: Cross Site Scripting vulnerability found in Simplcommerce v.40734964b0811f3cbaf64b6dac261683d256f961 thru 3103357200c70b4767986544e01b19dbf11505a7 allows a remote attacker to execute arbitrary code via a crafted script to the search bar feature.
How severe is CVE-2020-27478?: CVE-2020-27478 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2020-27478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-27478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2020-27478 have an EU (EUVD) identifier?: Yes. CVE-2020-27478 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-19988.
When was CVE-2020-27478 published?: CVE-2020-27478 was published on 2024-04-30 and last updated on 2026-06-17.

References

https://github.com/simplcommerce/SimplCommerce/issues/943

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