A Leader in the 2026 Gartner® Magic Quadrant™ for Endpoint Protection. Six years running.Six years. Gartner® Magic Quadrant™ Leader.Find Out Why
Experiencing a Breach?Blog
Get StartedContact Us
SentinelOne
  • Platform
    Platform Overview
    • Singularity Platform
      Welcome to Integrated Enterprise Security
    • AI for Security
      Leading the Way in AI-Powered Security Solutions
    • Securing AI
      Accelerate AI Adoption with Secure AI Tools, Apps, and Agents.
    • How It Works
      The Singularity XDR Difference
    • Singularity Marketplace
      One-Click Integrations to Unlock the Power of XDR
    • Pricing & Packaging
      Comparisons and Guidance at a Glance
    Data & AI
    • Purple AI
      Accelerate SecOps with Generative AI
    • Singularity Hyperautomation
      Easily Automate Security Processes
    • AI-SIEM
      The AI SIEM for the Autonomous SOC
    • AI Data Pipelines
      Security Data Pipeline for AI SIEM and Data Optimization
    • Singularity Data Lake
      AI-Powered, Unified Data Lake
    • Singularity Data Lake for Log Analytics
      Seamlessly Ingest Data from On-Prem, Cloud or Hybrid Environments
    Endpoint Security
    • Singularity Endpoint
      Autonomous Prevention, Detection, and Response
    • Singularity XDR
      Native & Open Protection, Detection, and Response
    • Singularity RemoteOps Forensics
      Orchestrate Forensics at Scale
    • Singularity Threat Intelligence
      Comprehensive Adversary Intelligence
    • Singularity Vulnerability Management
      Application & OS Vulnerability Management
    • Singularity Identity
      Identity Threat Detection and Response
    Cloud Security
    • Singularity Cloud Security
      Block Attacks with an AI-Powered CNAPP
    • Singularity Cloud Native Security
      Secure Cloud and Development Resources
    • Singularity Cloud Workload Security
      Real-Time Cloud Workload Protection Platform
    • Singularity Cloud Data Security
      AI-Powered Threat Detection for Cloud Storage
    • Singularity Cloud Security Posture Management
      Detect and Remediate Cloud Misconfigurations
    Securing AI
    • Prompt Security
      Secure AI Tools Across Your Enterprise
  • Why SentinelOne?
    Why SentinelOne?
    • Why SentinelOne?
      Cybersecurity Built for What’s Next
    • Our Customers
      Trusted by the World’s Leading Enterprises
    • Industry Recognition
      Tested and Proven by the Experts
    • About Us
      The Industry Leader in Autonomous Cybersecurity
    Compare SentinelOne
    • Arctic Wolf
    • Broadcom
    • CrowdStrike
    • Cybereason
    • Microsoft
    • Palo Alto Networks
    • Sophos
    • Splunk
    • Trellix
    • Trend Micro
    • Wiz
    Verticals
    • Energy
    • Federal Government
    • Finance
    • Healthcare
    • Higher Education
    • K-12 Education
    • Manufacturing
    • Retail
    • State and Local Government
  • Services
    Managed Services
    • Managed Services Overview
      Wayfinder Threat Detection & Response
    • Threat Hunting
      World-Class Expertise and Threat Intelligence
    • Managed Detection & Response
      24/7/365 Expert MDR Across Your Entire Environment
    • Incident Readiness & Response
      DFIR, Breach Readiness, & Compromise Assessments
    Support, Deployment, & Health
    • Technical Account Management
      Customer Success with Personalized Service
    • SentinelOne GO
      Guided Onboarding & Deployment Advisory
    • SentinelOne University
      Live and On-Demand Training
    • Services Overview
      Comprehensive Solutions for Seamless Security Operations
    • SentinelOne Community
      Community Login
  • Partners
    Our Network
    • MSSP Partners
      Succeed Faster with SentinelOne
    • Singularity Marketplace
      Extend the Power of S1 Technology
    • Cyber Risk Partners
      Enlist Pro Response and Advisory Teams
    • Technology Alliances
      Integrated, Enterprise-Scale Solutions
    • SentinelOne for AWS
      Hosted in AWS Regions Around the World
    • Channel Partners
      Deliver the Right Solutions, Together
    • SentinelOne for Google Cloud
      Unified, Autonomous Security Giving Defenders the Advantage at Global Scale
    • Partner Locator
      Your Go-to Source for Our Top Partners in Your Region
    Partner Portal→
  • Resources
    Resource Center
    • Case Studies
    • Data Sheets
    • eBooks
    • Reports
    • Videos
    • Webinars
    • Whitepapers
    • Events
    View All Resources→
    Blog
    • Feature Spotlight
    • For CISO/CIO
    • From the Front Lines
    • Identity
    • Cloud
    • macOS
    • SentinelOne Blog
    Blog→
    Tech Resources
    • SentinelLABS
    • Ransomware Anthology
    • Cybersecurity 101
  • About
    About SentinelOne
    • About SentinelOne
      The Industry Leader in Cybersecurity
    • Investor Relations
      Financial Information & Events
    • SentinelLABS
      Threat Research for the Modern Threat Hunter
    • Careers
      The Latest Job Opportunities
    • Press & News
      Company Announcements
    • Cybersecurity Blog
      The Latest Cybersecurity Threats, News, & More
    • FAQ
      Get Answers to Our Most Frequently Asked Questions
    • DataSet
      The Live Data Platform
    • S Foundation
      Securing a Safer Future for All
    • S Ventures
      Investing in the Next Generation of Security, Data and AI
  • Pricing
Get StartedContact Us
CVE Vulnerability Database
Vulnerability Database/CVE-2025-31383

CVE-2025-31383: FrescoChat Live Chat CSRF Vulnerability

CVE-2025-31383 is a Cross-Site Request Forgery vulnerability in sodena FrescoChat Live Chat flexytalk-widget that enables Stored XSS attacks. This article covers the technical details, affected versions, and mitigation.

Updated: May 15, 2026

CVE-2025-31383 Overview

CVE-2025-31383 is a Cross-Site Request Forgery (CSRF) vulnerability in the sodena FrescoChat Live Chat WordPress plugin (flexytalk-widget) that enables Stored Cross-Site Scripting (XSS). The flaw affects all versions of FrescoChat Live Chat up to and including 3.2.6. An attacker can craft a malicious request that, when triggered by an authenticated administrator, persists attacker-controlled JavaScript into the plugin's stored settings. The injected payload then executes in the browser of every user who renders the affected page. The weakness is categorized under CWE-352: Cross-Site Request Forgery.

Critical Impact

A single click on an attacker-controlled link by an authenticated WordPress administrator can result in persistent JavaScript injection across the affected site, leading to session theft, account takeover, or further compromise of site visitors.

Affected Products

  • sodena FrescoChat Live Chat WordPress plugin (flexytalk-widget)
  • All versions from n/a through <= 3.2.6
  • WordPress sites with the plugin installed and active

Discovery Timeline

  • 2025-04-09 - CVE-2025-31383 published to NVD
  • 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-31383

Vulnerability Analysis

The vulnerability chains two distinct weaknesses into a single exploitable issue. First, a state-changing administrative endpoint in the flexytalk-widget plugin fails to validate an anti-CSRF token (such as a WordPress nonce) before processing requests. Second, user-supplied input accepted by that endpoint is stored without proper sanitization or output encoding, producing a Stored XSS condition.

When an authenticated administrator visits an attacker-controlled page, the browser silently submits a forged request to the WordPress site. The request writes attacker-supplied JavaScript into the plugin's stored configuration. The payload then executes in the context of any user who loads a page rendering that configuration.

Exploitation requires user interaction, which limits drive-by abuse but aligns with typical phishing-driven CSRF scenarios. The EPSS score for this CVE is 0.08%.

Root Cause

The root cause is missing CSRF protection on a privileged plugin endpoint combined with insufficient sanitization of stored input. WordPress provides wp_verify_nonce() and check_admin_referer() helpers to defend against CSRF, and wp_kses() or esc_attr()/esc_html() for output encoding. The vulnerable code paths in flexytalk-widget versions through 3.2.6 invoke neither category of control on the affected handler.

Attack Vector

The attack is delivered over the network and requires that a logged-in WordPress administrator load an attacker-controlled page or click a crafted link. The forged request modifies plugin settings to embed a JavaScript payload. Subsequent visitors, including unauthenticated site users, execute the script in their browser session against the trusted site origin.

No verified exploit code is publicly available. Refer to the Patchstack Vulnerability Report for additional technical context.

Detection Methods for CVE-2025-31383

Indicators of Compromise

  • Unexpected <script> tags, onerror= attributes, or external JavaScript references stored in FrescoChat plugin options within the wp_options table.
  • Outbound requests from site visitors to unknown third-party domains originating from pages that render the chat widget.
  • Administrator audit logs showing plugin settings updates that do not correlate with legitimate admin activity.

Detection Strategies

  • Inspect plugin configuration fields under the flexytalk-widget namespace for HTML or JavaScript content that should contain only plain text or numeric values.
  • Monitor WordPress access logs for POST requests to plugin admin endpoints lacking a valid Referer header from the same origin.
  • Deploy a Web Application Firewall (WAF) rule that flags state-changing requests to wp-admin endpoints originating from cross-origin contexts.

Monitoring Recommendations

  • Enable WordPress activity logging to capture plugin option changes with user, IP, and timestamp attribution.
  • Implement Content Security Policy (CSP) headers and alert on CSP violation reports indicating inline script execution from the chat widget.
  • Continuously scan installed plugins against vulnerability databases such as Patchstack and the WordPress Plugin Directory.

How to Mitigate CVE-2025-31383

Immediate Actions Required

  • Identify all WordPress instances running FrescoChat Live Chat (flexytalk-widget) version 3.2.6 or earlier.
  • Deactivate the plugin until a patched version is confirmed available and installed.
  • Audit plugin settings and the wp_options table for any injected script content and remove it.
  • Rotate WordPress administrator credentials and invalidate active sessions if compromise is suspected.

Patch Information

At the time of publication, the Patchstack Vulnerability Report lists all versions through <= 3.2.6 as affected. Administrators should monitor the vendor's plugin page for an update beyond 3.2.6 that adds nonce verification and output encoding, then apply it immediately.

Workarounds

  • Remove or deactivate the flexytalk-widget plugin if a patched release is unavailable.
  • Restrict access to /wp-admin/ using IP allowlists, VPN, or HTTP authentication to reduce CSRF exposure.
  • Enforce a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
  • Require administrators to use browsers with separate profiles for WordPress administration to limit ambient session abuse.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

  • Vulnerability Details
  • TypeCSRF

  • Vendor/TechFreschat

  • SeverityHIGH

  • CVSS Score7.1

  • EPSS Probability0.08%

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
  • Impact Assessment
  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityLow
  • CWE References
  • CWE-352
  • Technical References
  • Patchstack Vulnerability Report
  • Latest CVEs
  • CVE-2026-9813: FlowIntel SSRF Vulnerability

  • CVE-2026-4377: D-Link DWR-X1820 Auth Bypass Vulnerability

  • CVE-2026-47074: ex_aws_sns Auth Bypass Vulnerability

  • CVE-2026-46241: Linux Kernel Use-After-Free Vulnerability
Default Legacy - Prefooter | Experience the World’s Most Advanced Cybersecurity Platform

Experience the Most Advanced Cybersecurity Platform

See how the world’s most intelligent, autonomous cybersecurity platform can protect your organization today and into the future.

Try SentinelOne
  • Get Started
  • Get a Demo
  • Product Tour
  • Why SentinelOne
  • Pricing & Packaging
  • FAQ
  • Contact
  • Contact Us
  • Customer Support
  • SentinelOne Status
  • Language
  • Platform
  • Singularity Platform
  • Singularity Endpoint
  • Singularity Cloud
  • Singularity AI-SIEM
  • Singularity Identity
  • Singularity Marketplace
  • Purple AI
  • Services
  • Wayfinder TDR
  • SentinelOne GO
  • Technical Account Management
  • Support Services
  • Verticals
  • Energy
  • Federal Government
  • Finance
  • Healthcare
  • Higher Education
  • K-12 Education
  • Manufacturing
  • Retail
  • State and Local Government
  • Cybersecurity for SMB
  • Resources
  • Blog
  • Labs
  • Case Studies
  • Videos
  • Product Tours
  • Events
  • Cybersecurity 101
  • eBooks
  • Webinars
  • Whitepapers
  • Press
  • News
  • Ransomware Anthology
  • Company
  • About Us
  • Our Customers
  • Careers
  • Partners
  • Legal & Compliance
  • Security & Compliance
  • Investor Relations
  • S Foundation
  • S Ventures

©2026 SentinelOne, All Rights Reserved.

Privacy Notice Terms of Use

English