CVE-2021-3879

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 57.1% of scored records. A rank, not a probability.

NVD base score

5.4 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-10-19 12:30Z5 YR AGO

Last updated

2024-08-03 17:09Z2 YR AGO

Reserved

2021-10-12

Assigning CNA

@huntrdev

Record state

PUBLISHED

Severity

Medium (CVSS 6.8)

CNA CVSS vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

b18836a91cfe891ea04c6587cb0350a1765d7c5dc94ffdfd93eaa065ae61bc72

• huntr.devhttps://huntr.dev/bounties/6dccc49e-3843-4a4a-b397-5c659e5f8bfex_refsource_CONFIRM
• github.comhttps://github.com/snipe/snipe-it/commit/bda23bb1e66fd7ce42c75c69cf5eea4e80865c1cx_refsource_MISC