CVE-2021-24682:Cross-Site Scripting (XSS) vulnerability in Cool Tag Cloud WordPress plugin before version 2.26

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Description Preview

The Cool Tag Cloud WordPress plugin before version 2.26 contains a stored Cross-Site Scripting (XSS) vulnerability. The plugin does not properly escape the style attribute of the cool_tag_cloud shortcode, allowing users with privileges as low as Contributor to inject malicious JavaScript code that executes in visitors' browsers when they view affected pages.

Overview

The Cool Tag Cloud WordPress plugin enhances tag cloud display functionality on WordPress sites. In versions prior to 2.26, the plugin fails to properly sanitize or validate user input in the style attribute of its shortcode. This vulnerability allows authenticated users with contributor-level access or higher to inject malicious JavaScript code into pages. When other users (including administrators) view these pages, the injected code executes in their browsers, potentially leading to cookie theft, credential harvesting, or other malicious actions performed in the context of the victim's session.

Remediation

  1. Update the Cool Tag Cloud WordPress plugin to version 2.26 or later immediately.
  2. If immediate updating is not possible, consider temporarily disabling the plugin until it can be updated.
  3. Review any content created by contributors or other users for potential malicious shortcode usage.
  4. Consider implementing a Web Application Firewall (WAF) to provide additional protection against XSS attacks.
  5. Follow the principle of least privilege by limiting the number of users with contributor or higher roles.

References

  1. WPScan Vulnerability Database: https://wpscan.com/vulnerability/7dfdd50d-77f9-4f0a-8673-8f033c0b0e05
  2. Common Weakness Enumeration: CWE-79 (Improper Neutralization of Input During Web Page Generation)
  3. OWASP XSS Prevention Cheat Sheet: https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Accommodation & Food Services
    Accommodation & Food Services
  2. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  3. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  4. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  5. Construction
    Construction
  6. Educational Services
    Educational Services
  7. Finance and Insurance
    Finance and Insurance
  8. Health Care & Social Assistance
    Health Care & Social Assistance
  9. Information
    Information
  10. Management of Companies & Enterprises
    Management of Companies & Enterprises
  11. Manufacturing
    Manufacturing
  12. Mining
    Mining
  13. Other Services (except Public Administration)
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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