CVE-2023-26001
BaseFortify
Publication date: 2025-06-06
Last updated on: 2026-04-28
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 Next Event Calendar plugin version 1.2 and earlier. It allows attackers with author-level privileges to inject malicious scripts, such as redirects or advertisements, that execute when visitors access the affected website. This happens because the plugin does not properly neutralize input during web page generation, enabling the injection of harmful HTML or scripts. [1]
How can this vulnerability impact me? :
The vulnerability can lead to attackers executing malicious scripts on your website, potentially redirecting visitors, displaying unwanted advertisements, or performing other harmful actions. This can compromise the security and integrity of your website, harm user trust, and possibly lead to further exploitation. Since the plugin is abandoned and no official fix is available, the risk remains unless you remove or replace the plugin or apply a virtual patch. [1]
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 Next Event Calendar plugin version 1.2 or earlier is installed and active. Since the vulnerability requires author-level privileges to exploit and involves stored XSS, scanning for suspicious scripts or payloads injected via the plugin's input fields may help. However, plugin-based malware scanners are often unreliable for this vulnerability. No specific commands are provided in the resources for detection. [1]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include removing and replacing the vulnerable Next Event Calendar plugin with an alternative plugin, as no official fix or updated version is available. Applying a virtual patch (vPatch) from Patchstack can provide rapid protection by auto-mitigating the vulnerability. Deactivating the plugin alone does not eliminate the risk. Seeking professional incident response services is recommended if compromise is suspected. [1]