CVE-2021-3863

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

0.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 55.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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

2021-10-05

Assigning CNA

@huntrdev

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

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

Data version

5.1

Document digest

ac6889817edb1c5c08bf402ae8b1daf53c6bbae1f9a2a7c89e58cab4044f18cb

• huntr.devhttps://huntr.dev/bounties/1dbc8d79-1b53-44a3-a576-faec78f29ba0x_refsource_CONFIRM
• github.comhttps://github.com/snipe/snipe-it/commit/fc5efd857f61f7e45c61db567bb66612bcb53128x_refsource_MISC