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CVE-2025-5082: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in milmor WP Attachments

Medium
VulnerabilityCVE-2025-5082cvecve-2025-5082cwe-79
Published: Wed May 28 2025 (05/28/2025, 07:23:57 UTC)
Source: CVE Database V5
Vendor/Project: milmor
Product: WP Attachments

Description

The WP Attachments plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘attachment_id’ parameter in all versions up to, and including, 5.0.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

AI-Powered Analysis

AILast updated: 07/06/2025, 01:12:34 UTC

Technical Analysis

CVE-2025-5082 is a reflected Cross-Site Scripting (XSS) vulnerability identified in the WP Attachments plugin for WordPress, developed by milmor. This vulnerability affects all versions up to and including 5.0.12. The root cause is insufficient input sanitization and output escaping of the 'attachment_id' parameter. An unauthenticated attacker can craft a malicious URL containing a specially crafted 'attachment_id' parameter that injects arbitrary JavaScript code. When a victim clicks on such a link, the injected script executes in the context of the victim's browser session on the affected WordPress site. This can lead to theft of session cookies, defacement, redirection to malicious sites, or other malicious actions that compromise user confidentiality and integrity. The vulnerability is classified under CWE-79, which relates to improper neutralization of input during web page generation. The CVSS v3.1 base score is 6.1, indicating a medium severity level. The attack vector is network-based (remote), requires no privileges, but does require user interaction (clicking a crafted link). The scope is changed, meaning the vulnerability can affect resources beyond the vulnerable component. No known exploits are currently reported in the wild, and no official patches have been linked yet. The vulnerability is significant because WordPress is widely used across the globe, including Europe, and plugins like WP Attachments are popular for managing media files. Reflected XSS vulnerabilities are common attack vectors for phishing and session hijacking, making this a notable risk for websites using this plugin without mitigation or updates.

Potential Impact

For European organizations, the impact of CVE-2025-5082 can be substantial, especially for those relying on WordPress sites with the WP Attachments plugin installed. Successful exploitation can lead to unauthorized disclosure of sensitive user information, including session tokens, which can be leveraged for account takeover. This undermines user trust and can damage the organization's reputation. Additionally, attackers could use the vulnerability to perform phishing attacks by injecting malicious scripts that mimic legitimate site content, potentially leading to credential theft or malware distribution. The integrity of website content can also be compromised, affecting brand image and compliance with data protection regulations such as GDPR. While availability is not directly impacted, the indirect consequences of exploitation, such as blacklisting by search engines or browsers, can reduce site accessibility. European organizations in sectors like e-commerce, government, healthcare, and education, which often use WordPress for public-facing websites, are particularly at risk. The medium CVSS score reflects moderate exploitability and impact, but the widespread use of WordPress amplifies the potential reach of this vulnerability.

Mitigation Recommendations

To mitigate CVE-2025-5082, European organizations should take the following specific actions: 1) Immediately audit all WordPress installations for the presence of the WP Attachments plugin and identify versions up to 5.0.12. 2) If an updated version addressing this vulnerability is released, prioritize patching to the latest secure version. 3) In the absence of an official patch, implement Web Application Firewall (WAF) rules to detect and block suspicious requests containing malicious payloads in the 'attachment_id' parameter. 4) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts on affected sites. 5) Educate users and administrators about the risks of clicking on unsolicited links, especially those that appear suspicious or originate from untrusted sources. 6) Conduct regular security scans and penetration tests focusing on XSS vulnerabilities. 7) Consider disabling or replacing the WP Attachments plugin if it is not essential or if no timely patch is available. 8) Monitor security advisories from the plugin vendor and WordPress security communities for updates or exploit reports. These targeted steps go beyond generic advice by focusing on immediate detection, prevention, and user awareness tailored to this specific vulnerability.

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Technical Details

Data Version
5.1
Assigner Short Name
Wordfence
Date Reserved
2025-05-22T08:37:13.219Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6836be9b182aa0cae23cee24

Added to database: 5/28/2025, 7:43:23 AM

Last enriched: 7/6/2025, 1:12:34 AM

Last updated: 7/30/2025, 10:02:16 PM

Views: 14

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