CVE-2020-8421
Joomla! Cross-Site Scripting (XSS)
Description
An issue was discovered in Joomla! before 3.9.15. Inadequate escaping of usernames allows XSS attacks in com_actionlogs.
INFO
Published Date :
Jan. 28, 2020, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 5:38 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
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-2020-8421.
| URL | Resource |
|---|---|
| https://developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogs | Vendor Advisory |
| https://developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogs | Vendor 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-2020-8421 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8421 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogs -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 06, 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:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogs No Types Assigned https://developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogs Vendor Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* versions from (including) 3.9.0 up to (excluding) 3.9.14
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8421 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-2020-8421
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.40481
percentile