Wordfence Founder & CEO. Instrument pilot out of KAPA and KORS. Ham radio nerd (WT1J). I run a team of kickass engineers & cybersecurity experts.

Orcas Island, WA or Colorado
Joined March 2007
Look around you. The world is an amazing place full of awesome people. – at Redmond, WA
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Maybe slop drowning a working exploit is the new mitigation.
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Google hedging: "We have not yet validated exploitation in the wild and we have no evidence of successful wide scale exploitation." ... "Nonetheless, exploitation may have already begun in a limited fashion"
A brief update on the critical vulnerabilities in PHP:  We have not yet validated exploitation in the wild and we have no evidence of successful wide scale exploitation. There are currently several exploit PoCs publicly circulating, many of which appear to be "vibe-coded" and are incapable of remote code execution. We have validated some PoCs, however, that are capable of RCE against default deployments of mod_php but not PHP-FPM. Nonetheless, exploitation may have already begun in a limited fashion and the threat is viable and very serious. Defenders should: ​1) Patch & Restart by upgrading to PHP 8.5.12, 8.4.27, 8.3.36, or 8.2.35 and restarting web services ​2) Layer Temporary Safeguards at the network edge (WAF/proxy rules) and server configuration level if immediate patching requires a maintenance window ​3) Protect Credentials by monitoring for abnormal session traffic and rotating keys and passwords on compromised internet-facing PHP systems exposed prior to patching 🔗 We are continually updating our Cloud Security blog post on this topic with real-world guidance and actionable defense strategies as we learn more. Please keep monitoring these posts for updates as you prioritize your patching efforts: cloud.google.com/blog/produc…  🔗 Technical details from Wiz: wiz.io/blog/php2shell-php-rc… 🔗 Details of the exposure from VirusTotal: blog.virustotal.com/2026/10/…
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The street finds its own use for things. And it didn't find much use for php2shell which is more like php2shell-in-a-lab-setting.
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For comparison I checked with the Wordfence team and we saw 5 site cleanings for the UpdraftPlus infrastructure compromise 6 days ago. And that WordPress plugin has 3 million installs. BuiltWith says there are 23 million or 104 million PHP sites, depending on whether you count 'expired' or not. And not a single compromised site hit our site cleaning team. 🤔 xitter.cf/mmaunder/status/211335…
We protect over 5 million PHP sites and when we find a major exploitable vulnerability, we always see site cleanings. We have seen exactly zero hacked sites from php2shell. Zero. Across a population of 5 million PHP sites that our product protects. Draw your own conclusions. #php2shell
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Tagging @ethicalhack3r @OliverSild @photomatt and @perezbox so you can loop in @GoDaddy if you still have contacts there. And looping in @gdb because he and @eastdakota are appearing together. Guys we haven't seen a single hacked WP site from #php2shell and we're (@wordfence is) protecting over 5 million PHP/WP sites. You know the deal. If it's exploitable, we all see site cleanings. No one in cybersecurity wants to minimize a vulnerability in case it does blow up. We're seeing reports from @Cloudflare and @eastdakota of attack attempts. We're seeing attack attempts in our telemetry. But we're not seeing a single compromised site. No one wants to say that it's not exploitable against vanilla PHP because it may turn out to be. I think we all know CVSS scores are imperfect. And the messaging here is off the charts. This has gone mainstream, but no one is talking about the fact that no one is seeing hacks. It's easy to take a bow and claim industry success, "go team cyber" and all that. But you know if these things are a legit risk you'll see compromised sites. Especially in the PHP/WP space where there are a lot of individual boxes out there with owners on vacation or MIA. And nothing. Not one. So I think the conversation that needs to happen is something like this: We're going to find scary vulnerabilities with the amazing capabilities that @OpenAI and @AnthropicAI are bringing online, but we need to calibrate the messaging to take into account how exploitable and scriptable each vuln is, or we risk alert fatigue and blowing credibility which we'll badly need when an exploitable scriptable vulnerability shows up.
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We protect over 5 million PHP sites and when we find a major exploitable vulnerability, we always see site cleanings. We have seen exactly zero hacked sites from php2shell. Zero. Across a population of 5 million PHP sites that our product protects. Draw your own conclusions. #php2shell
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Woopsie, when you enter your tablet PIN on the NASA stream.
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An old classic needed an update.
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OpenAI: The smart people left, so we don't know how to make models anymore. Sam: Recycle.
guys what gpt-5 model should i use in cursor gpt-5.1 codex gpt-5.1 codex mini gpt 5.1 codex high gpt 5.1 codex fast gpt 5.1 codex high fast gpt 5.1 codex low gpt 5.1 codex low fast gpt 5.1 fast gpt 5.1 high gpt 5.1 high fast gpt 5.1 low gpt 5.1 low fast gpt 5 codex high gpt 5 codex fast gpt 5 codex high gpt 5 codex high fast gpt-5.1 gpt 5 codex gpt-5 gpt 5 fast gpt 5 medium gpt 5 medium fast gpt 5 high gpt 5 high fast gpt 5 low gpt 5 low fast gpt 5.1 codex mini high gpt 5.1 codex mini low gpt-5-mini gpt-5-nano gpt-5-pro thanks in advance
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Mark Maunder retweeted
100,000 WordPress Sites Affected by Privilege Escalation Vulnerability in AI Engine WordPress Plugin wordfence.com/blog/2025/11/1… We urge users to update their sites with the latest patched version (3.1.4), and change the token in the settings page, as soon as possible.
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Mark Maunder retweeted
How To Prevent XSS Attacks On WordPress Sites #xss #crosssitescripting #wordpress
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Given enough agents, all bugs are shallow.
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Mark Maunder retweeted
🟦 Attention: #WordPress Users: Last week, there were: ✅ 191 Vulnerabilities Disclosed ✅ In 178 Wordpress Plugins And 7 Themes ✅ 52 Vulnerability Researchers That Contributed To Wordpress Security.👏 Review here to make sure you're protected: wordfence.com/blog/2025/09/w…
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Mark Maunder retweeted
🟦 Attention #WordPress users: The Wordfence Threat Intelligence Team has discovered a new malware campaign that highlights the hidden risks associated with “nulled plugins”, or premium plugins that have been tampered with by third parties. Read more: wordfence.com/blog/2025/09/t…
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Mark Maunder retweeted
🟦 Attention #WordPress Users: On August 17th, 2025, we received a submission for an authenticated PHP Object Injection vulnerability in Fluent Forms, a plugin with more than 600,000 active installations. Update to latest patched version (6.1.2) ASAP wordfence.com/blog/2025/09/6…
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If a Ferrari LLM isn’t on the cards and all we get are Camrys, we’ll have to make the most of the Camrys.
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Try “No that’s wrong” to get better quality results from AI, particularly with providers like OpenAI using back-end model switching.
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