CVE-2023-43233:Stored cross-site scripting (XSS) vulnerability in the cms/content/edit component of YZNCMS v1.3.0 that allows attackers to inject arbitrary web scripts or HTML via a crafted payload in the title parameter.

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This CVE describes a stored (persistent) XSS vulnerability in the cms/content/edit component of YZNCMS v1.3.0. An attacker can supply a crafted payload in the title field, which is stored by the application and later reflected back in the user interface, enabling execution of arbitrary web scripts or HTML in the context of other users’ browsers. The issue is tied to the 1.3.0 release, and the CVE record references supporting documentation describing the vulnerability.

Overview

YZNCMS v1.3.0 contains a stored XSS flaw within the cms/content/edit workflow. By injecting a payload into the title parameter, an attacker can have the payload stored and subsequently rendered in pages viewed by other users, potentially leading to script execution, token/session theft, or content manipulation. The vulnerability is categorized as stored XSS and is associated with the 1.3.0 release. The CVE record provides a reference to a descriptive PDF detailing the issue.

Remediation

  • Upgrade to the latest available YZNCMS release or apply the vendor’s patch that fixes the XSS in cms/content/edit (verify with the vendor or security advisory for the exact fixed version).
  • If upgrading is not immediately possible, implement input validation and output encoding for the title field:
    • Validate and sanitize all input on the server side to remove or neutralize HTML/JS content.
    • Encode or escape user-supplied data before rendering it in any HTML context.
    • Consider disallowing HTML in the title field or restricting it to a safe whitelist if such functionality is not required.
  • Implement a Content Security Policy (CSP) to reduce the impact of any potential script execution.
  • Deploy Web Application Firewall (WAF) rules or ModSecurity policies to detect and block common XSS payloads targeting the title field.
  • Review templates and rendering code to ensure proper escaping in all places where the title is reflected.
  • Conduct targeted testing:
    • Attempt standard XSS payloads in the title parameter and verify that they are not executed or reflected safely.
    • Validate that stored values are properly encoded when displayed.
  • Establish monitoring and logging for unusual or malformed input in the title field; alert on repeated probing attempts.
  • After applying fixes, re-run security testing and verify that the vulnerability is mitigated.

References

  • CVE-2023-43233 (MITRE): https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-43233
  • YZNCMS 1.3.0 XSS PDF (descriptive reference): https://github.com/yux1azhengye/mycve/blob/main/YZNCMS%201.3.0%20XSS.pdf

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

Focus on What Matters

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

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