CVE-2021-44663
CRITICALCVSS 9.8/10EPSS 3.74%
Last modified
CVE-2021-44663 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A Remote Code Execution (RCE) vulnerability exists in the Xerte Project Xerte through 3.8.4 via a crafted php file through elfinder in connetor.php.. EPSS estimates a 3.74% chance of exploitation in the next 30 days.
Description
A Remote Code Execution (RCE) vulnerability exists in the Xerte Project Xerte through 3.8.4 via a crafted php file through elfinder in connetor.php.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nottingham.Ac | Xerte Online Toolkits | <= 3.8.4 |
References
- https://github.com/thexerteproject/xerteonlinetoolkits/commit/694a591b5ab7f634f036afaac10397cf3677a98cPatch, Third Party Advisory
- https://riklutz.nl/2021/10/30/unauthenticated-file-upload-to-remote-code-execution-in-xerte/Exploit, Third Party Advisory
- https://www.xerte.org.uk/index.php/en/news/blog/80-news/336-xerte-3-8-5-important-security-update-now-availableRelease Notes, Vendor Advisory
- https://github.com/thexerteproject/xerteonlinetoolkits/commit/694a591b5ab7f634f036afaac10397cf3677a98cPatch, Third Party Advisory
- https://riklutz.nl/2021/10/30/unauthenticated-file-upload-to-remote-code-execution-in-xerte/Exploit, Third Party Advisory
- https://www.xerte.org.uk/index.php/en/news/blog/80-news/336-xerte-3-8-5-important-security-update-now-availableRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-44663?
A Remote Code Execution (RCE) vulnerability exists in the Xerte Project Xerte through 3.8.4 via a crafted php file through elfinder in connetor.php.
How severe is CVE-2021-44663?
CVE-2021-44663 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.74% probability of exploitation in the next 30 days.
How do I fix CVE-2021-44663?
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.
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Are you affected by CVE-2021-44663?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST