CVE-2021-44912
Last modified
CVE-2021-44912 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In XE 1.116, when uploading the Normal 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. EPSS estimates a 0.48% chance of exploitation in the next 30 days.
Description
In XE 1.116, when uploading the Normal 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. If the .htaccess configuration is improper, for example before the XE 1.11.2 version, you can upload the PHP type file to GETSHELL.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xpressengine | Xpressengine | < 1.11.6 |
References
- https://github.com/xpressengine/xe-core/issues/2433Exploit, Issue Tracking, Third Party Advisory
- https://github.com/xpressengine/xe-core/issues/2433Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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