Basercms
CVE-2021-20683
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors.
AnalysisAI
Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Improper neutralization of JavaScript input in the blog article editing function of baserCMS versions prior to 4.4.5 allows remote authenticated attackers to inject an arbitrary script via unspecified vectors. Affected products include: Basercms. Version information: prior to 4.4.5.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
In baserCMS before 4.1.4, lib\Baser\Model\ThemeConfig.php allows remote attackers to execute arbitrary PHP code via the
SQL injection vulnerability in the baserCMS 3.0.14 and earlier, 4.0.5 and earlier allows remote attackers to execute arb
baserCMS is a website development framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploita
baserCMS is a website development framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploita
baserCMS is a Content Management system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,
baserCMS is a Content Management system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,
OS command injection in baserCMS installer prior to version 5.2.3 allows remote attackers to execute arbitrary system co
OS command injection in baserCMS update functionality allows authenticated administrators to execute arbitrary commands
OS command injection in baserCMS core update functionality allows authenticated administrators to execute arbitrary syst
baserCMS 3.0.14 and earlier, 4.0.5 and earlier allows an attacker to execute arbitrary PHP code on the server via unspec
Cross-site request forgery (CSRF) vulnerability in baserCMS plugin Mail version 3.0.10 and earlier allows remote attacke
Cross-site request forgery (CSRF) vulnerability in baserCMS plugin Blog version 3.0.10 and earlier allows remote attacke
Same weakness CWE-79 – Cross-site Scripting (XSS)
View allShare
External POC / Exploit Code
Leaving vuln.today