CVE-2021-44663

Name: CVE-2021-44663
Creator: NVD / NIST
Published: 2022-02-24T19:15:09.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.74%

Last modified Jun 17, 2026

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

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.74%

88.5th percentile

Probability of exploitation in the next 30 days. Learn more

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: Feb 24, 2022
Last Modified: Jun 17, 2026
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.

Are you affected by CVE-2021-44663?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST