CVE-2021-44911

Name: CVE-2021-44911
Creator: NVD / NIST
Published: 2022-02-09T16:15:14.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2021-44911 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. XE before 1.11.6 is vulnerable to Unrestricted file upload via modules/menu/menu.admin.controller.php. When uploading the Mouse over button and When selected button, there is no restriction on the file suffix, which leads to any file uploading to the files directory. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

XE before 1.11.6 is vulnerable to Unrestricted file upload via modules/menu/menu.admin.controller.php. When uploading the Mouse over button and When selected button, there is no restriction on the file suffix, which leads to any file uploading to the files directory. Since .htaccess only restricts the PHP type, uploading HTML-type files leads to stored XSS vulnerabilities.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.56%

42.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Xpressengine	Xpressengine	< 1.11.6

References

https://github.com/xpressengine/xe-core/issues/2434Exploit, Patch, Third Party Advisory
https://github.com/xpressengine/xe-core/issues/2434Exploit, Patch, Third Party Advisory

Timeline

Published: Feb 9, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44911?

How severe is CVE-2021-44911?

CVE-2021-44911 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44911?

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-2021-44911?

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

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Source: NVD / NIST