CVE-2025-49333
BaseFortify
Publication date: 2025-06-06
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
Can you explain this vulnerability to me?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the WordPress Simple Membership plugin (versions up to 4.6.3). It allows an attacker with administrator privileges to inject malicious scripts into web pages generated by the plugin. These scripts can execute when visitors access the affected site, potentially causing redirects, displaying unwanted advertisements, or executing other harmful HTML payloads. [1]
How can this vulnerability impact me? :
If exploited, this vulnerability can lead to malicious scripts running in the browsers of site visitors, which may result in unwanted redirects, display of advertisements, or other harmful actions. Although the severity is considered low (CVSS 5.9), it can compromise user experience and potentially lead to further attacks. Attackers need administrator privileges to exploit this, and unpatched sites are at risk until updated to version 4.6.4 or later. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection of this vulnerability involves checking the version of the Simple Membership plugin installed on your WordPress site. If the version is 4.6.3 or earlier, it is vulnerable. Since the vulnerability allows an attacker with administrator privileges to inject malicious scripts, monitoring for unusual administrator activity or unexpected script injections in web pages can help. Professional incident response or server-side malware scanning is recommended for compromise detection, as plugin-based scanners may be tampered with by malware. 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 Simple Membership plugin to version 4.6.4 or later, where the vulnerability is fixed. Additionally, Patchstack offers virtual patching (vPatching) as an immediate protective measure that auto-mitigates the vulnerability even before official patches are applied. If a compromise is suspected, professional incident response or server-side malware scanning is recommended. [1]