PhpSpreadsheet RCE Vulnerability: PoC Exploit Disclosed for 312 Million Users

· Securityonline · June 11, 2026, 1:47 a.m.
Summary
The blog post discusses a recently disclosed remote code execution (RCE) vulnerability in the PhpSpreadsheet library, which affects approximately 312 million users. It alerts the developer community about the potential risks and exploits associated with this vulnerability, urging developers to take immediate action. Related issues in other software libraries are also mentioned, highlighting the critical nature of security in development.
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