CVE-2026-28113
Reflected XSS in Ultimate Learning Pro ≤ 3.9.1 Allows Code Injection
Publication date: 2026-03-05
Last updated on: 2026-03-05
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| azzaroco | ultimate_learning_pro | to 3.9.1 (inc) |
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?
CVE-2026-28113 is a Reflected Cross-Site Scripting (XSS) vulnerability in the WordPress Ultimate Learning Pro Plugin versions up to and including 3.9.1.
This vulnerability allows an attacker to inject malicious scripts, such as redirects, advertisements, or other HTML payloads, which execute when site visitors access the compromised pages.
Exploitation requires user interaction, typically involving a privileged user clicking a malicious link, visiting a crafted page, or submitting a form.
How can this vulnerability impact me? :
This vulnerability can lead to attackers executing malicious scripts in the context of the affected website, potentially resulting in unauthorized actions such as redirects to malicious sites, display of unwanted advertisements, or theft of sensitive information.
Since exploitation requires user interaction, users or administrators might be tricked into performing actions that trigger the malicious payload.
No official patch is currently available, so the site remains vulnerable unless mitigation measures are applied.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
[{'type': 'paragraph', 'content': "This vulnerability is a reflected Cross Site Scripting (XSS) issue in the Ultimate Learning Pro WordPress plugin up to version 3.9.1. Detection typically involves monitoring for suspicious HTTP requests that include malicious script payloads in URLs or form submissions targeting the plugin's pages."}, {'type': 'paragraph', 'content': 'Since no official patch is available, detection can be aided by using web application firewall (WAF) rules or scanning tools that look for reflected XSS patterns in HTTP requests.'}, {'type': 'paragraph', 'content': 'Specific commands are not provided in the resources, but common approaches include using tools like curl or wget to test for reflected script injection by sending crafted requests and observing responses for script execution or reflection.'}] [1]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include applying Patchstack’s mitigation rule designed to block attacks targeting this vulnerability until an official patch is released.
Additionally, users should avoid clicking on suspicious links or submitting untrusted forms that could exploit the reflected XSS vulnerability.
Monitoring and restricting user input and access to the affected plugin pages can also reduce risk.