CVE-2025-47686 in SEO Plugin
Summary
by MITRE • 05/07/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in DELUCKS DELUCKS SEO allows Stored XSS. This issue affects DELUCKS SEO: from n/a through 2.5.9.
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Analysis
by VulDB Data Team • 05/07/2025
The vulnerability identified as CVE-2025-47686 represents a critical cross-site scripting flaw within the DELUCKS SEO plugin, specifically classified as a stored XSS vulnerability under the CWE-79 framework. This weakness occurs during the web page generation process where input data is not properly sanitized before being rendered in web pages, creating an exploitable condition that allows attackers to inject malicious scripts into the application's user interface. The vulnerability affects all versions of the DELUCKS SEO plugin from the initial release through version 2.5.9, indicating a long-standing issue that has remained unaddressed in the plugin's codebase.
The technical implementation of this flaw demonstrates poor input validation and output encoding practices within the plugin's web page generation logic. When users submit data through the plugin's interface, particularly in fields that are subsequently displayed on web pages, the application fails to adequately neutralize potentially malicious input. This allows attackers to craft specially formatted payloads that, when stored within the application's database, will execute in the context of other users' browsers when they view the affected pages. The stored nature of this vulnerability means that malicious scripts persist in the application environment and can affect multiple users without requiring repeated exploitation attempts.
From an operational standpoint, this vulnerability poses significant risks to websites utilizing the DELUCKS SEO plugin, as it enables attackers to execute arbitrary code in users' browsers with the privileges of those users. The impact extends beyond simple script execution to potentially allow session hijacking, credential theft, and full compromise of user accounts. Attackers could leverage this vulnerability to redirect users to malicious sites, inject advertisements, or perform actions on behalf of authenticated users. The vulnerability's presence in versions through 2.5.9 suggests that organizations running these plugin versions are exposed to persistent threats, as the malicious scripts can remain active indefinitely until the vulnerability is patched.
Security practitioners should prioritize immediate remediation of this vulnerability through plugin updates to versions that address the XSS flaw. The mitigation strategy should include implementing proper input sanitization, output encoding, and Content Security Policy implementations to prevent script injection. Additionally, organizations should conduct thorough security assessments of their web applications to identify similar vulnerabilities in other components and establish robust input validation processes. This vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious links and T1059.001 for command and scripting interpreter execution, making it a critical target for both defensive measures and incident response planning. The affected plugin version range indicates that administrators must upgrade to the latest available version to eliminate this attack vector and protect their web applications from potential exploitation.