What is CVE-2021-3862?

CVE-2021-3862 is a medium-severity vulnerability in Icecoder, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-01-17.

How severe is CVE-2021-3862?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Icecoder

CVE-2021-3862

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

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-01-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-10-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Icecoder
Icecoder Icecoder/icecoder — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/5c9c228e-2a39-4643-bb82-2b02a2b0a601 (Exploit, Third Party Advisory)
github.com/icecoder/icecoder/commit/51cf24b2a39138e6a7b5739ef59eb38cd7c39763 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3862?: CVE-2021-3862 is a medium-severity vulnerability in Icecoder, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-01-17.
How severe is CVE-2021-3862?: Medium severity. CVSS v3 base score is 4.8 out of 10.