SB2020102978 - Multiple vulnerabilities in baserCMS

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Main Vulnerability Database SB2020102978

SB2020102978 - Multiple vulnerabilities in baserCMS

Published: October 29, 2020 Updated: April 27, 2026

Security Bulletin ID SB2020102978
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Cross-site scripting (CVE-ID: CVE-2020-15276)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to execute arbitrary script code in the victim's browser.

The vulnerability exists due to cross-site scripting in blog comment posting when handling user-supplied comment content. A remote attacker can submit a specially crafted comment to execute arbitrary script code in the victim's browser.


2) Cross-site scripting (CVE-ID: CVE-2020-15277)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear


The vulnerability allows a remote user to execute arbitrary script code.

The vulnerability exists due to improper neutralization of input during web page generation in the edit template feature when editing templates. A remote user can inject a specially crafted script into a template to execute arbitrary script code.

Exploitation requires an administrator to be logged in.


3) Cross-site scripting (CVE-ID: CVE-2020-15273)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear


The vulnerability allows a remote user to execute arbitrary script code.

The vulnerability exists due to cross-site scripting in edit feed settings, edit widget area, sub site new registration, and new category registration when handling crafted input. A remote user can submit specially crafted input to execute arbitrary script code.

Exploitation requires an administrator to be logged in.


Remediation

Install update from vendor's website.

References