Vulnerability Details : CVE-2021-44912
Potential exploit
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-44912
- cpe:2.3:a:xpressengine:xpressengine:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-44912
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-44912
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2021-44912
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-44912
-
https://github.com/xpressengine/xe-core/issues/2433
Unrestricted file upload vulnerability in Latest Release 3.3.16 /index.php?module=admin&act=dispMenuAdminSiteMap · Issue #2433 · xpressengine/xe-core · GitHubExploit;Issue Tracking;Third Party Advisory
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