CVE-2020-13443
ExpressionEngine Arbitrary Code Execution Vulnerability
Description
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).
INFO
Published Date :
June 24, 2020, 3:15 p.m.
Last Modified :
July 2, 2020, 6:37 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2020-13443 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-13443.
| URL | Resource |
|---|---|
| https://expressionengine.com/blog | Vendor Advisory |
| https://gist.github.com/mariuszpoplwski/51604d8a6d7d78fffdf590c25e844e09 | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVEs, conference materials, research.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-13443 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-13443 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jul. 02, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://expressionengine.com/blog No Types Assigned https://expressionengine.com/blog Vendor Advisory Changed Reference Type https://gist.github.com/mariuszpoplwski/51604d8a6d7d78fffdf590c25e844e09 No Types Assigned https://gist.github.com/mariuszpoplwski/51604d8a6d7d78fffdf590c25e844e09 Exploit, Third Party Advisory Added CWE NIST CWE-434 Added CPE Configuration OR *cpe:2.3:a:expressionengine:expressionengine:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-13443 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-13443
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.46 }} -0.02%
score
0.75564
percentile