What is CVE-2021-3858?

CVE-2021-3858 is a high-severity vulnerability in Snipe Snipe/snipe-It, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-10-19.

How severe is CVE-2021-3858?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Snipe Snipe/snipe-It

CVE-2021-3858

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

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-10-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (44.9th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Snipe Snipe/snipe-It — versions unspecified
Snipeitapp Snipe-It

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

huntr.dev/bounties/a2fac2eb-100d-45b1-9ac7-71847c2f2b6b (Exploit, Patch, Third Party Advisory)
github.com/snipe/snipe-it/commit/84c73aae5dcafa9529ceeeda6e8cdda5a42129c3 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3858?: CVE-2021-3858 is a high-severity vulnerability in Snipe Snipe/snipe-It, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-10-19.
How severe is CVE-2021-3858?: High severity. CVSS v3 base score is 8.8 out of 10.