🚨 The developers of PHP have just released new versions that patch two critical vulnerabilities that could allow remote code execution on any website running PHP (which is virtually all of them). www.php.net/archive/2026...
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Wiz: "These findings rank among the most severe vulnerabilities discovered in PHP, and arguably in software history." www.wiz.io/blog/php2she...
OpenAI, whose model helped researchers discover the vulnerabilities: "Given the severity of these flaws and PHP’s widespread use, we consider this one of the most impactful security issues in recent memory." openai.com/index/coordi...
Today's xkcd: xkcd.com/3314/ Anyone curious about the story behind this comic won't be able to check explain xkcd today, because they took their website down due to the vulnerability: www.explainxkcd.com
My initial story on the PHP vulnerabilities: www.cybersecuritydive.com/news/php-web...
Here, strangely delayed, is CISA's brief advisory about the PHP vulnerabilities: www.cisa.gov/news-events/...
Story updated with more detail, including Cisco's estimate that roughly half of PHP instances are too old to receive the security updates: www.cybersecuritydive.com/news/php-web...
Amazon says its telemetry shows attempts to exploit the PHP vulnerabilities on Oct. 17, four days before they were disclosed. aws.amazon.com/blogs/securi...
BitSight has some global PHP usage data: www.bitsight.com/groma-explor...
🔥🔥 In a blog post about the process that led up to the disclosure of the PHP2Shell vulnerabilities, the PHP Foundation slams Chainguard for "unilaterally [breaking] the embargo." "This disregarded weeks of work by many parties toward a coordinated disclosure." thephp.foundation/blog/2026/10...
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Google says it hasn't yet validated any exploitation of the PHP2Shell vulnerabilities, but the company isn't ruling out that it's happening somewhere. x.com/JohnHultquis...
@ericjgeller.com AWS saw exploitation in their honeypots 4 days before the announcement. https://aws.amazon.com/blogs/security/amazon-threat-intelligence-identifies-php2shell-exploitation-prior-to-public-disclosure-in-madpot/
CISA has added the PHP2Shell vulnerabilities to its Known Exploited Vulnerabilities catalog: www.cisa.gov/news-events/... A big move given that two security firms that previously reported exploitation, Sophos and Palo Alto, have both retracted those claims.