CVE-2026-25351
Reflected XSS in skygroup MyMedi Before
Publication date: 2026-03-25
Last updated on: 2026-04-23
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| skygroup | mymedi | to 1.7.7 (exc) |
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-2026-25351 is a medium priority Cross Site Scripting (XSS) vulnerability affecting the WordPress MyMedi Theme versions prior to 1.7.7.
This vulnerability allows attackers to inject malicious scripts—such as redirects, advertisements, or other HTML payloads—into websites using the vulnerable theme.
These malicious scripts execute when visitors access the compromised site.
Exploitation requires no authentication but does require a privileged user to perform an action like clicking a malicious link, visiting a crafted page, or submitting a form to trigger the XSS attack.
How can this vulnerability impact me? :
This vulnerability can lead to attackers injecting and executing malicious scripts on your website, which can result in unauthorized redirects, display of unwanted advertisements, or other harmful HTML payloads.
Such attacks can compromise the security and integrity of your website, potentially harming your users by stealing their data or performing actions on their behalf.
Since the attack requires user interaction by a privileged user, it can lead to elevated risks if such users are tricked into triggering the malicious scripts.
Immediate updating to version 1.7.7 or later is strongly advised to prevent exploitation.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability is a reflected Cross Site Scripting (XSS) issue in the MyMedi WordPress theme versions prior to 1.7.7, which allows injection of malicious scripts via crafted URLs or form inputs.
Detection typically involves testing the web application for reflected XSS by submitting crafted inputs or URLs containing script payloads and observing if the scripts are executed or reflected in the response.
Common commands or methods to detect reflected XSS include using tools like curl or browser-based testing with payloads such as <script>alert(1)</script> in URL parameters or form fields.
- Use curl to send a request with a script payload in a URL parameter, for example: curl "http://your-site.com/page?param=<script>alert(1)</script>"
- Manually test input fields or URL parameters by entering typical XSS payloads and checking if the input is reflected unescaped in the page.
- Use automated vulnerability scanners or security testing tools that include reflected XSS detection.
What immediate steps should I take to mitigate this vulnerability?
The primary and recommended mitigation is to update the MyMedi WordPress theme to version 1.7.7 or later, which contains the fix for this reflected XSS vulnerability.
Until the update can be applied, Patchstack has issued mitigation rules that can block attacks targeting this vulnerability.
If immediate updating is not possible, users should seek assistance from their hosting provider or web developer to implement temporary protections.
- Update the MyMedi theme to version 1.7.7 or later as soon as possible.
- Apply Patchstack mitigation rules to block exploitation attempts.
- Limit user interactions with untrusted links or inputs that could trigger the XSS.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The CVE-2026-25351 vulnerability is a reflected Cross-Site Scripting (XSS) issue that allows attackers to inject malicious scripts into websites using the vulnerable MyMedi Theme. Such vulnerabilities can lead to unauthorized access to user data or manipulation of website content, which may result in breaches of data protection and privacy requirements.
While the provided information does not explicitly mention compliance with standards like GDPR or HIPAA, XSS vulnerabilities generally pose risks to confidentiality and integrity of user data, potentially leading to non-compliance with regulations that mandate protection of personal and sensitive information.
Therefore, failure to address this vulnerability could impact an organization's ability to comply with common data protection regulations by exposing user data to unauthorized access or manipulation.