CVE-2021-3376
CVSS v3
8.8
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in Cuppa CMS Versions Before 31 Jan 2021 allows authenticated attackers to gain escalated privileges via a crafted POST request using the user_group_id_field parameter.
Technical details
- Published
- 2021-12-14
Frequently asked questions
What is CVE-2021-3376?
An issue was discovered in Cuppa CMS Versions Before 31 Jan 2021 allows authenticated attackers to gain escalated privileges via a crafted POST request using the user_group_id_field parameter.
Is CVE-2021-3376 actively exploited?
Active exploitation of CVE-2021-3376 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-3376?
CVE-2021-3376 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-3376 affecting your environment?
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