• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Cisco removed the backdoor account from its Unified Communications Manager

 | 

U.S. Sanctions Russia's Aeza Group for aiding crooks with bulletproof hosting

 | 

Qantas confirms customer data breach amid Scattered Spider attacks

 | 

CVE-2025-6554 is the fourth Chrome zero-day patched by Google in 2025

 | 

U.S. CISA adds TeleMessage TM SGNL flaws to its Known Exploited Vulnerabilities catalog

 | 

A sophisticated cyberattack hit the International Criminal Court

 | 

Esse Health data breach impacted 263,000 individuals

 | 

Europol dismantles €460M crypto scam targeting 5,000 victims worldwide

 | 

CISA and U.S. Agencies warn of ongoing Iranian cyber threats to critical infrastructure

 | 

U.S. CISA adds Citrix NetScaler flaw to its Known Exploited Vulnerabilities catalog

 | 

Canada bans Hikvision over national security concerns

 | 

Denmark moves to protect personal identity from deepfakes with new copyright law

 | 

Ahold Delhaize data breach affected over 2.2 Million individuals

 | 

Facebook wants access to your camera roll for AI photo edits

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 51

 | 

Security Affairs newsletter Round 530 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

The FBI warns that Scattered Spider is now targeting the airline sector

 | 

LapDogs: China-nexus hackers Hijack 1,000+ SOHO devices for espionage

 | 

Taking over millions of developers exploiting an Open VSX Registry flaw

 | 

OneClik APT campaign targets energy sector with stealthy backdoors

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Hacking
  • Security
  • XSS flaw in LiteSpeed Cache plugin exposes millions of WordPress sites at risk

XSS flaw in LiteSpeed Cache plugin exposes millions of WordPress sites at risk

Pierluigi Paganini February 27, 2024

Researchers warn of an XSS vulnerability, tracked as CVE-2023-40000, in the LiteSpeed Cache plugin for WordPress

Patchstack researchers warn of an unauthenticated site-wide stored XSS vulnerability, tracked as CVE-2023-40000, that impacts the LiteSpeed Cache plugin for WordPress.

The plugin LiteSpeed Cache (free version) is a popular caching plugin in WordPress which has over 4 million active installations.

An unauthenticated user can exploit the vulnerability to steal sensitive information or escalate privileges on the WordPress site by performing a single HTTP request.

“This plugin suffers from unauthenticated site-wide stored XSS vulnerability and could allow any unauthenticated user from stealing sensitive information to, in this case, privilege escalation on the WordPress site by performing a single HTTP request.” read the advisory published by Patchstack.

“This vulnerability occurs because the code that handles input from the user doesn’t implement sanitization and output escaping. This case also combined with improper access control on one of the available REST API endpoints from the plugin. The described vulnerability was fixed in version 5.7.0.1 and assigned CVE-2023-40000.”

The vulnerability resides in the function ‘update_cdn_status.’ 

Because the vulnerability stems from constructing an HTML value directly from the POST body parameter for the admin notice message, it is possible to fix the issue by sanitizing user input through esc_html directly on the affected parameter. Furthermore, the vendor has implemented a permission check on the update_cdn_status function, incorporating hash validation to restrict access to the function exclusively to privileged users.

The vulnerability was solved with the release of version 5.7.0.1 in October 2023.

“We recommend applying escaping and sanitization to any message that will be displayed as an admin notice. Depending on the context of the data, we recommend using sanitize_text_field to sanitize value for HTML output (outside of HTML attribute) or esc_html. For escaping values inside of attributes, you can use the esc_attr function. We also recommend applying a proper permission or authorization check to the registered rest route endpoints.” concludes the post.

Follow me on Twitter: @securityaffairs and Facebook

Pierluigi Paganini

(SecurityAffairs – hacking, LiteSpeed Cache plugin)


facebook linkedin twitter

Hacking hacking news information security news IT Information Security LiteSpeed Cache plugin Pierluigi Paganini Security Affairs Security News Wordpress

you might also like

Pierluigi Paganini July 02, 2025
Cisco removed the backdoor account from its Unified Communications Manager
Read more
Pierluigi Paganini July 02, 2025
Qantas confirms customer data breach amid Scattered Spider attacks
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Cisco removed the backdoor account from its Unified Communications Manager

    Security / July 02, 2025

    U.S. Sanctions Russia's Aeza Group for aiding crooks with bulletproof hosting

    Cyber Crime / July 02, 2025

    Qantas confirms customer data breach amid Scattered Spider attacks

    Cyber Crime / July 02, 2025

    CVE-2025-6554 is the fourth Chrome zero-day patched by Google in 2025

    Hacking / July 02, 2025

    U.S. CISA adds TeleMessage TM SGNL flaws to its Known Exploited Vulnerabilities catalog

    Hacking / July 02, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT