CVE-2020-15273: high-severity vulnerability in baserproject basercms
Cross-Site Scripting in baserCMS
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 1.0%
baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
Affected products
baserproject · basercmsRelated CVEs — baserproject basercms
In the same product, most dangerous first.
CVE-2026-21861CRITICALbaserCMS: OS Command Injection Leading to Remote Code Execution (RCE)EPSS 2.3%CVE-2020-15277HIGHRemote Code Execution in baserCMSEPSS 2.3%CVE-2021-41243CRITICALOS Command Injection Vulnerability and Potential Zip Slip VulnerabilityEPSS 2.2%CVE-2020-15159HIGHCross Site Scripting leading to RCE in baserCMSEPSS 2.2%CVE-2026-30880CRITICALbaserCMS: OS command injection vulnerability in installerEPSS 2.1%CVE-2021-41279HIGHZip Slip Vulnerability in BaserCMSEPSS 1.6%