CVE-2021-20734

CVE-2021-20734 is a medium-severity vulnerability in Welcart Welcart E-commerce with a CVSS 3.x base score of 6.1. 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

Description

Cross-site scripting vulnerability in Welcart e-Commerce versions prior to 2.2.4 allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2021-20734?
Cross-site scripting vulnerability in Welcart e-Commerce versions prior to 2.2.4 allows remote attackers to inject arbitrary script or HTML via unspecified vectors.
How severe is CVE-2021-20734?
CVE-2021-20734 has a CVSS 3.x base score of 6.1, rated medium 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 none.
Is CVE-2021-20734 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20734?
CVE-2021-20734 affects Welcart Welcart E-commerce. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20734?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20734 published?
CVE-2021-20734 was published on 2021-06-22 and last updated on 2026-06-17.

References

Affected products (1)

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