What is CVE-2021-44911?

CVE-2021-44911 is a medium-severity vulnerability in Xpressengine, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-02-09.

How severe is CVE-2021-44911?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Xpressengine

CVE-2021-44911

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (43.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Xpressengine
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-44911?: CVE-2021-44911 is a medium-severity vulnerability in Xpressengine, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-02-09.
How severe is CVE-2021-44911?: Medium severity. CVSS v3 base score is 5.4 out of 10.