CVE-2021-3376
HIGHCVSS 8.8/10EPSS 1.10%
Last modified
CVE-2021-3376 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cuppacms | Cuppacms | < 31\/jan\/2021 |
References
- https://github.com/CuppaCMS/CuppaCMS/issues/12Exploit, Issue Tracking, Third Party Advisory
- https://github.com/CuppaCMS/CuppaCMS/issues/12Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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.
How severe is CVE-2021-3376?
CVE-2021-3376 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3376?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-33754Windows DNS Server Remote Code Execution Vulnerability8
- CVE-2021-33755Windows Hyper-V Denial of Service Vulnerability6.3
- CVE-2021-33756Windows DNS Snap-in Remote Code Execution Vulnerability8.8
- CVE-2021-33757Windows Security Account Manager Remote Protocol Security Fe…5.3
- CVE-2021-33758Windows Hyper-V Denial of Service Vulnerability7.7
- CVE-2021-33759Windows Desktop Bridge Elevation of Privilege Vulnerability7.8
- CVE-2021-33760Media Foundation Information Disclosure Vulnerability5.5
- CVE-2021-33761Windows Remote Access Connection Manager Elevation of Privil…7.8
- CVE-2021-33762Azure CycleCloud Elevation of Privilege Vulnerability7
- CVE-2021-33763Windows Remote Access Connection Manager Information Disclos…5.5
- CVE-2021-33764Windows Key Distribution Center Information Disclosure Vulne…5.9
- CVE-2021-33765Windows Installer Spoofing Vulnerability6.2
Are you affected by CVE-2021-3376?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST