How severe is CVE-2021-42051?

CVE-2021-42051 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-42051 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-42051?

CVE-2021-42051 affects Abantecart. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-42051?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-42051 published?

CVE-2021-42051 was published on 2021-12-14 and last updated on 2026-06-17.

CVE-2021-42051

CVE-2021-42051 is a medium-severity vulnerability in Abantecart with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Abantecart
Published: 2021-12-14
Last modified: 2026-06-17

Description

An issue was discovered in AbanteCart before 1.3.2. Any low-privileged user with file-upload permissions can upload a malicious SVG document that contains an XSS payload.

Frequently asked questions

What is CVE-2021-42051?: An issue was discovered in AbanteCart before 1.3.2. Any low-privileged user with file-upload permissions can upload a malicious SVG document that contains an XSS payload.
How severe is CVE-2021-42051?: CVE-2021-42051 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-42051 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-42051?: CVE-2021-42051 affects Abantecart. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-42051?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-42051 published?: CVE-2021-42051 was published on 2021-12-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:abantecart:abantecart:*:*:*:*:*:*:*:*

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