CVE-2021-24681 Scanner

The Duplicate Page WordPress plugin is designed to streamline the content duplication process on WordPress sites. It is popular among website administrators and developers who need to replicate posts or pages quickly, maintaining original content attributes like metadata and settings. By simplifying content management tasks, this plugin assists in workflow efficiencies for sites with complex structures or frequent updates. However, the utility of such tools demands careful security considerations due to the potential for vulnerabilities. Ensuring plugins are up-to-date is crucial to maintaining site integrity and security. The Duplicate Page plugin must be managed wisely to support WordPress site functionality without compromising security.

The Cross-Site Scripting (XSS) vulnerability found in the Duplicate Page WordPress plugin can allow attackers to execute malicious scripts. These scripts can run in the user's browser, manipulating site interactions or potentially stealing session cookies. The vulnerability arises from unsanitized Duplicate Post Suffix settings output. This XSS vulnerability requires a high privilege user to exploit fully, posing a risk primarily to sites with multiple administrators. The potential impact includes session hijacking and website defacement.

The technical details of the vulnerability involve unsanitized fields in the plugin's settings, specifically the Duplicate Post Suffix. Attackers can inject scripts into this field, and when stored, these scripts execute every time the settings page is loaded. This behavior creates an attack vector where scripts could potentially be used to hijack session data or deface parts of the website visible to end-users. The endpoint of interest is the settings modification page, typically accessed by high privilege users. Proper sanitization of data before it is stored and reflected back in web pages is critical to mitigating such vulnerabilities.

Exploiting this vulnerability can lead to significant repercussions such as user session hijacking, enabling attackers to impersonate site users or administrators. Successful exploitation may also deface the website, affecting credibility and user experience. In severe cases, attackers could propagate further attacks by embedding malicious content or links, increasing the site's susceptibility to phishing or malware distribution. The broader impact on reputation and potential data breach consequences make addressing this vulnerability critical.

REFERENCES

• https://wpscan.com/vulnerability/9ebdd1df-1d6f-4399-8b0f-77a79f841464
• https://wordpress.org/plugins/duplicate-page
• https://nvd.nist.gov/vuln/detail/CVE-2021-24681