100,000 WordPress Sites Affected by Arbitrary File Read Vulnerability in Anti-Malware Security and Brute-Force Firewall WordPress Plugin

On October 3rd, 2025, we received a submission for an Arbitrary File Read vulnerability in Anti-Malware Security and Brute-Force Firewall, a WordPress plugin with more than 100,000 active installations. This vulnerability makes it possible for an authenticated attacker, with subscriber-level permissions or higher, to read arbitrary files on the server, which may contain sensitive information. … Read more

Wordfence Intelligence Weekly WordPress Vulnerability Report (October 13, 2025 to October 19, 2025)

Calling all Vulnerability Researchers and Bug Bounty Hunters!   Operation: Maximum Impact Challenge! Now through November 10, 2025, earn 2X bounty rewards for all in-scope submissions in software with at least 5,000 active installs and fewer than 5 million active installs. Bounties up to $31,200 per vulnerability. Submit bold. Earn big! The LFInder Challenge: Refine … Read more

Mass Exploit Campaign Targeting Arbitrary Plugin Installation Vulnerabilities

📢 Calling all Vulnerability Researchers and Bug Bounty Hunters! 📢 🚀 Operation: Maximum Impact Challenge! Now through November 10, 2025, earn 2X bounty rewards for all in-scope submissions in software with at least 5,000 active installs and fewer than 5 million active installs. Bounties up to $31,200 per vulnerability. Submit bold. Earn big! 📁 The LFInder … Read more

Malware Using Variable Functions and Cookies For Obfuscation

📢 Calling all Vulnerability Researchers and Bug Bounty Hunters! 📢 🚀 Operation: Maximum Impact Challenge! Now through November 10, 2025, earn 2X bounty rewards for all in-scope submissions in software with at least 5,000 active installs and fewer than 5 million active installs. Bounties up to $31,200 per vulnerability. Submit bold. Earn big! 📁 The LFInder … Read more

Wordfence Bug Bounty Program Monthly Report – September 2025

Last month in September 2025, the Wordfence Bug Bounty Program received 374 vulnerability submissions from our growing community of security researchers working to improve the overall security posture of the WordPress ecosystem. These submissions are reviewed, triaged, and processed by the Wordfence Threat Intelligence team, with validated vulnerabilities responsibly disclosed to vendors, often through the … Read more