CVE-2020-26231
"October CMS PHP Code Execution Vulnerability"
Description
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. A bypass of CVE-2020-15247 (fixed in 1.0.469 and 1.1.0) was discovered that has the same impact as CVE-2020-15247. An authenticated backend user with the cms.manage_pages, cms.manage_layouts, or cms.manage_partials permissions who would normally not be permitted to provide PHP code to be executed by the CMS due to cms.enableSafeMode being enabled is able to write specific Twig code to escape the Twig sandbox and execute arbitrary PHP. This is not a problem for anyone that trusts their users with those permissions to normally write & manage PHP within the CMS by not having cms.enableSafeMode enabled, but would be a problem for anyone relying on cms.enableSafeMode to ensure that users with those permissions in production do not have access to write & execute arbitrary PHP. Issue has been patched in Build 470 (v1.0.470) and v1.1.1.
INFO
Published Date :
Nov. 23, 2020, 9:15 p.m.
Last Modified :
Dec. 8, 2020, 6:57 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.8
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-2020-26231.
| URL | Resource |
|---|---|
| https://github.com/octobercms/october/commit/d34fb8ab51108495a9a651b841202d935f4e12f7 | Patch Third Party Advisory |
| https://github.com/octobercms/october/security/advisories/GHSA-r89v-cgv7-3jhx | Patch 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-26231 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26231 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]
Dec. 08, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/octobercms/october/commit/d34fb8ab51108495a9a651b841202d935f4e12f7 No Types Assigned https://github.com/octobercms/october/commit/d34fb8ab51108495a9a651b841202d935f4e12f7 Patch, Third Party Advisory Changed Reference Type https://github.com/octobercms/october/security/advisories/GHSA-r89v-cgv7-3jhx No Types Assigned https://github.com/octobercms/october/security/advisories/GHSA-r89v-cgv7-3jhx Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:octobercms:october:1.0.469:*:*:*:*:*:*:* *cpe:2.3:a:octobercms:october:1.1.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26231 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-2020-26231
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10264
percentile