CVE-2021-43862 : Vulnerability Insights and Analysis

jQuery Terminal Emulator plugin prior to version 2.31.1 has a low impact XSS vulnerability allowing attackers to execute code via URL.

Understanding CVE-2021-43862

What is CVE-2021-43862?

jQuery Terminal Emulator plugin pre-2.31.1 is vulnerable to limited XSS, potentially enabling code execution.

The Impact of CVE-2021-43862

CVSS Base Score: 3.7 (Low)
Attack Complexity: High
Attack Vector: Network
User Interaction: Required
Limited impact due to javascript attribute added to span tag.

Technical Details of CVE-2021-43862

Vulnerability Description

XSS vulnerability pre-2.31.1, fixed in version 2.31.1.

Affected Systems and Versions

Product: jquery.terminal
Vendor: jcubic
Versions Affected: < 2.31.1

Exploitation Mechanism

Attacker can execute code through URL if

execHash

option is used.

Mitigation and Prevention

Immediate Steps to Take

Update to version 2.31.1 to fix the vulnerability.
Apply the provided formatting workaround.

Long-Term Security Practices

Regularly monitor and update software versions.
Implement proper input validation and output encoding.
Educate users against executing untrusted code.

Patching and Updates

Refer to GitHub Security Advisory for the necessary patching information.