How severe is CVE-2021-3858?

CVE-2021-3858 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3858?

CVE-2021-3858 affects Snipeitapp Snipe-it. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3858?

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.

When was CVE-2021-3858 published?

CVE-2021-3858 was published on 2021-10-19 and last updated on 2026-06-17.

CVE-2021-3858

CVE-2021-3858 is a high-severity vulnerability in Snipeitapp Snipe-it with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Snipeitapp Snipe-it
Published: 2021-10-19
Last modified: 2026-06-17

Description

snipe-it is vulnerable to Cross-Site Request Forgery (CSRF)

Frequently asked questions

What is CVE-2021-3858?: snipe-it is vulnerable to Cross-Site Request Forgery (CSRF)
How severe is CVE-2021-3858?: CVE-2021-3858 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3858?: CVE-2021-3858 affects Snipeitapp Snipe-it. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3858?: 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.
When was CVE-2021-3858 published?: CVE-2021-3858 was published on 2021-10-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:*

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