CVE-2020-15249
October CMS SVG File Upload Stored XSS Vulnerability
Description
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October CMS from version 1.0.319 and before version 1.0.469, backend users with access to upload files were permitted to upload SVG files without any sanitization applied to the uploaded files. Since SVG files support being parsed as HTML by browsers, this means that they could theoretically upload Javascript that would be executed on a path under the website's domain (i.e. /storage/app/media/evil.svg), but they would have to convince their target to visit that location directly in the target's browser as the backend does not display SVGs inline anywhere, SVGs are only displayed as image resources in the backend and are thus unable to be executed. Issue has been patched in Build 469 (v1.0.469) & v1.1.0.
INFO
Published Date :
Nov. 23, 2020, 8:15 p.m.
Last Modified :
Nov. 30, 2020, 4:06 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.3
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-2020-15249.
| URL | Resource |
|---|---|
| https://github.com/octobercms/library/commit/80aab47f044a2660aa352450f55137598f362aa4 | Patch Third Party Advisory |
| https://github.com/octobercms/october/security/advisories/GHSA-fx3v-553x-3c4q | 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-2020-15249 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15249 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]
Nov. 30, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/octobercms/library/commit/80aab47f044a2660aa352450f55137598f362aa4 No Types Assigned https://github.com/octobercms/library/commit/80aab47f044a2660aa352450f55137598f362aa4 Patch, Third Party Advisory Changed Reference Type https://github.com/octobercms/october/security/advisories/GHSA-fx3v-553x-3c4q No Types Assigned https://github.com/octobercms/october/security/advisories/GHSA-fx3v-553x-3c4q Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:* versions from (including) 1.0.319 up to (excluding) 1.0.469
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15249 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-2020-15249
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.17086
percentile