CVE-2025-49871
BaseFortify
Publication date: 2025-06-17
Last updated on: 2026-04-23
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection of this vulnerability involves checking if the WordPress Noptin plugin version is up to and including 3.8.7, as these versions are vulnerable. Since the vulnerability allows an attacker with administrator privileges to inject malicious scripts, monitoring for unusual administrator activity or unexpected script injections in the website content can help detect exploitation. Patchstack recommends professional incident response and server-side malware scanning to identify compromises. Specific commands are not provided in the resources. [1]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to update the Noptin plugin to version 4.0.0 or later, where the vulnerability is fixed. Additionally, Patchstack offers virtual patching (vPatching) to auto-mitigate this and other vulnerabilities before official patches are applied. It is also recommended to perform professional incident response and server-side malware scanning if a site is suspected to be compromised. [1]
Can you explain this vulnerability to me?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the WordPress Noptin plugin up to version 3.8.7. It allows an attacker with administrator privileges to inject malicious scripts into the website, which then execute when visitors access the site. These scripts can perform actions like redirects, displaying unwanted advertisements, or other harmful HTML payloads. [1]
How can this vulnerability impact me? :
If exploited, this vulnerability can lead to malicious scripts running on your website, potentially redirecting visitors to harmful sites, displaying unwanted content, or compromising user interactions. Although the impact is considered low severity with a CVSS score of 5.9, it can still harm your site's reputation, user trust, and potentially lead to further security issues if not addressed. [1]