CVE-2024-29807 in DearFlip Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in DearHive DearFlip allows Stored XSS.This issue affects DearFlip: from n/a through 2.2.26.
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Analysis
by VulDB Data Team • 04/12/2025
The vulnerability identified as CVE-2024-29807 represents a critical cross-site scripting flaw within the DearHive DearFlip application, specifically categorized under CWE-79 which denotes improper neutralization of input during web page generation. This weakness enables attackers to inject malicious scripts into web pages viewed by other users, creating a persistent security risk that can affect multiple users simultaneously. The vulnerability manifests as a stored XSS attack vector, meaning that malicious payloads are permanently stored on the server and executed whenever affected pages are accessed by legitimate users. The affected version range spans from an unknown initial state through version 2.2.26, indicating that the flaw has existed for an extended period without proper mitigation.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization mechanisms within the DearFlip application's web page generation process. When users submit content through various input fields or interfaces, the application fails to properly sanitize or escape potentially malicious data before storing it in the database or rendering it in web pages. This insufficient neutralization allows attackers to embed script tags or other malicious code that executes in the context of other users' browsers. The stored nature of this vulnerability means that once malicious input is accepted and processed, it remains persistent in the application's database and will continue to affect users until the malicious content is removed or the vulnerability is patched.
From an operational perspective, this stored XSS vulnerability presents significant risks to both user privacy and application integrity. Attackers can exploit this weakness to steal session cookies, perform unauthorized actions on behalf of victims, redirect users to malicious websites, or extract sensitive information from authenticated sessions. The impact extends beyond individual user compromise to potentially affect the entire user base that interacts with the application's content. The vulnerability could enable attackers to gain persistent access to user accounts, modify content, or even escalate privileges within the application's ecosystem. Organizations relying on DearFlip for document management or collaborative features face heightened risk of data breaches and unauthorized access incidents.
Mitigation strategies for CVE-2024-29807 should prioritize immediate patching of the affected DearFlip versions, with administrators urgently upgrading to versions beyond 2.2.26 where the vulnerability has been addressed. In addition to patch management, organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar vulnerabilities from occurring in the future. This includes implementing strict sanitization of all user-supplied content, utilizing Content Security Policy headers, and employing proper escape sequences when rendering dynamic content. Security teams should also conduct thorough code reviews focusing on input handling, implement automated security scanning tools, and establish secure coding practices aligned with OWASP Top Ten recommendations. The vulnerability's classification as a stored XSS attack aligns with ATT&CK technique T1566.001 which involves social engineering through malicious content, making it particularly dangerous in collaborative environments where multiple users interact with shared content. Organizations should also consider implementing network-level protections such as web application firewalls and monitoring for suspicious script injection patterns to detect and prevent exploitation attempts.