CVE-2021-39355 : What You Need to Know
Learn about CVE-2021-39355 affecting Indeed Job Importer plugin. Includes impact, technical details, and mitigation steps. Ensure to uninstall the vulnerable plugin.
CVE-2021-39355 affects the Indeed Job Importer WordPress plugin, allowing attackers to execute Stored Cross-Site Scripting attacks.
Understanding CVE-2021-39355
This CVE describes an Authenticated Stored Cross-Site Scripting vulnerability in the Indeed Job Importer plugin.
What is CVE-2021-39355?
The vulnerability arises due to inadequate input validation, enabling attackers with administrative access to inject malicious scripts into the plugin's parameters.
The Impact of CVE-2021-39355
The severity is rated as MEDIUM with a CVSS base score of 5.5. Attackers can exploit this vulnerability on multi-site installations with specific admin privileges.
Technical Details of CVE-2021-39355
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability allows attackers to insert malicious scripts via several parameters in the plugin's PHP file.
Affected Systems and Versions
- Product: Indeed Job Importer
- Vendor: Indeed Job Importer
- Versions Affected: <= 1.0.5
- Version Type: Custom
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- Scope: Changed
- User Interaction: None
- CVSS Vector String: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Mitigation and Prevention
Protecting your system from CVE-2021-39355 is crucial.
Immediate Steps to Take
- Uninstall the Indeed Job Importer plugin from the affected sites.
Long-Term Security Practices
- Regularly update and monitor plugins for security patches.
- Implement least privilege access controls to restrict administrative capabilities.
Patching and Updates
Stay vigilant for security updates and apply them promptly to prevent exploitation of known vulnerabilities.