Description Preview
The Yada Wiki WordPress plugin before version 3.4.1 contains a stored Cross-Site Scripting (XSS) vulnerability. The plugin does not properly sanitize, validate, or escape the anchor attribute of its shortcode, which allows attackers to inject malicious JavaScript code that executes when users view the affected content.
Overview
This vulnerability (CVE-2021-24470) affects the Yada Wiki WordPress plugin versions prior to 3.4.1. The issue stems from improper handling of user input in the plugin's shortcode functionality, specifically the anchor attribute. When a malicious user with appropriate privileges adds crafted content using this shortcode, the injected JavaScript code becomes permanently stored in the database and executes whenever other users view the affected page. This stored XSS vulnerability could allow attackers to steal cookies, session tokens, or other sensitive information, perform actions on behalf of the victim, or redirect users to malicious websites.
Remediation
To address this vulnerability, website administrators should:
- Update the Yada Wiki WordPress plugin to version 3.4.1 or later immediately
- Review existing wiki content for potential malicious code that may have been injected
- Consider implementing a Web Application Firewall (WAF) as an additional layer of protection
- Follow WordPress security best practices, including regular updates of all plugins and themes
- Limit user privileges to only those necessary for their role within the site
References
- WPScan Vulnerability Database: https://wpscan.com/vulnerability/b01a85cc-0e45-4183-a916-19476354d5d4
- Common Weakness Enumeration (CWE-79): Cross-site Scripting
- OWASP XSS Prevention Cheat Sheet for developers: https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html
Industry ExposureMost to leastThis 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.
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.
- Accommodation & Food ServicesAccommodation & Food Services
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- ConstructionConstruction
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Health Care & Social AssistanceHealth Care & Social Assistance
- InformationInformation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- ManufacturingManufacturing
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Retail TradeRetail Trade
- Transportation & WarehousingTransportation & Warehousing
- UtilitiesUtilities
- Wholesale TradeWholesale Trade
