How severe is CVE-2021-3857?

CVE-2021-3857 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-2021-3857 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-2021-3857?

CVE-2021-3857 affects Chaskiq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3857?

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

When was CVE-2021-3857 published?

CVE-2021-3857 was published on 2022-01-17 and last updated on 2026-06-17.

CVE-2021-3857

CVE-2021-3857 is a medium-severity vulnerability in Chaskiq 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% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Chaskiq
Published: 2022-01-17
Last modified: 2026-06-17

Description

chaskiq is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Frequently asked questions

What is CVE-2021-3857?: chaskiq is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
How severe is CVE-2021-3857?: CVE-2021-3857 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-2021-3857 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-2021-3857?: CVE-2021-3857 affects Chaskiq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3857?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3857 published?: CVE-2021-3857 was published on 2022-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chaskiq:chaskiq:*:*:*:*:*:*:*:*

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CVE-2021-3853 — Medium (CVSS 6.1): chaskiq is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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