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CRITICAL

CVE-2021-3994

CVSS v3

9.6

CRITICAL

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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

Technical details

Published
2021-12-01

Frequently asked questions

What is CVE-2021-3994?

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

Is CVE-2021-3994 actively exploited?

Active exploitation of CVE-2021-3994 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-3994?

CVE-2021-3994 has a CVSS v3 base score of 9.6 (CRITICAL severity).

Is CVE-2021-3994 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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