CVE-2020-13443

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2020-13443
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13443.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-13443
Published
2020-06-24T15:15:11.617Z
Modified
2026-07-08T20:58:22.184878Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

ExpressionEngine before 5.3.2 allows remote attackers to upload and execute arbitrary code in a .php%20 file via Compose Msg, Add attachment, and Save As Draft actions. A user with low privileges (member) is able to upload this. It is possible to bypass the MIME type check and file-extension check while uploading new files. Short aliases are not used for an attachment; instead, direct access is allowed to the uploaded files. It is possible to upload PHP only if one has member access, or registration/forum is enabled and one can create a member with the default group id of 5. To exploit this, one must to be able to send and compose messages (at least).

References

Affected packages

Git / github.com/expressionengine/expressionengine

Affected ranges

Type
GIT
Repo
https://github.com/expressionengine/expressionengine
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
82d7d2d68e8b6e4244489b3ce051305e83af8824
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:expressionengine:expressionengine:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.3.2"
        }
    ]
}

Affected versions

5.*
5.3.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13443.json"