Security Alert Summary
The Lemonsoft WordPress add on contains an improper neutralization of input during web page generation that can lead to Cross-Site Scripting (XSS). The issue is reported against the add on version 2025.7.1. According to the CVE entry, exploitation involves injection of web content that is not properly sanitized, which can be leveraged in contexts where the conditions described by the CVSS metrics are met.
CVE Details
- CVE ID:
CVE-2025-9427 - Affected component: Lemonsoft WordPress add on
- Affected versions: 2025.7.1
- Published: January 13, 2026 at 2:16:37 PM UTC
- Last modified: January 13, 2026 at 2:16:37 PM UTC
- CVSS: CVSS v4.0 base score 8.4 (HIGH) — vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Authentication / attack requirements: Attack requirements: NONE (as reported)
- Privileges required: HIGH (per CVSS data)
- User interaction: ACTIVE (user interaction is required)
- Primary impact: Confidentiality: HIGH; Integrity: HIGH; Availability: HIGH
- CWE / weakness ID: CWE-79 (Improper Neutralization of Input During Web Page Generation)
Technical Details
The CVE entry describes an Improper Neutralization of Input During Web Page Generation (Cross-Site Scripting, XSS) in the Lemonsoft WordPress add on. This means that input used when generating pages is not properly escaped or sanitized, allowing crafted input to inject active web content (such as JavaScript) into pages served to users.
The CVE description does not name specific functions, templates, or REST API endpoints involved. Based on the reported weakness (CWE-79), the underlying cause is a failure to neutralize or encode user-controlled data before including it in generated HTML output. The CVSS metadata indicates exploitation requires an account with high privileges and active user interaction, and that successful exploitation can impact confidentiality, integrity, and availability.
Because the CVE entry does not specify exact code paths or endpoints, developers and site administrators should assume that any place the add on outputs user-controllable data into pages could be affected and review output encoding and sanitization across the add on.
How This Could Impact Your Website
Consider a site with multiple roles: an owner, internal staff (editors or administrators), and external contractors or contributors. If the add on renders user-supplied data without proper neutralization, an attacker who can provide content in a context the add on renders could cause a script to execute in the browser of a user who views that content.
- Site owner or administrator viewing a compromised page could have session information exposed to the injected script, depending on context and browser protections.
- Internal staff or contributors could have confidential content or user data exposed if the injected script reads or transmits displayed data.
- Exposed email addresses or other contact details could increase the risk of targeted phishing or social engineering against staff or contractors.
If you’re unsure whether your site is affected or how to assess your current user roles and plugins, it may be worth having a professional review your setup.
Recommended Actions
- Update the affected plugin as soon as a patched version is available. (The CVE entry does not specify a fixed version.)
- Review and reduce unnecessary user roles and privileges, especially for high-privilege accounts.
- Enforce strong passwords and two-factor authentication for editors and administrators.
- Remove unused or unmaintained plugins and add-ons from your site.
- Monitor site activity and logs for unusual behavior following any suspected exploitation.
If you’d like help reviewing your plugins, user roles, or overall WordPress security posture, our team at Freshy is happy to help.
