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Hackers Exploit PHP Security Flaw to Breach Systems

Hackers Exploit PHP Security Flaw to Breach Systems

First seen 26 Oct 2026, 12:11 UTC • •
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ThreatCluster AI
ThreatCluster •October 26, 2026 at 14:42 UTC
  • •Hackers exploited a security flaw in PHP, affecting hidden sites.
  • •KB Kookmin Bank confirmed 2,091 data leaks due to the breach.
  • •The specific CVE details and mitigation strategies were not disclosed.

A security flaw in the core web program PHP has been exploited by hackers, marking the first known case of such an attack. The breach reportedly involves hidden sites that are more vulnerable than the main website. KB Kookmin Bank announced that an additional 2,091 individuals had their data leaked as a result of this exploitation. The specific details of the vulnerability and its CVE designation were not disclosed in the articles. The attack method is linked to a flaw in PHP, which is widely used in web development. The scope of the impact remains unclear, but the incident highlights the ongoing risks associated with vulnerabilities in widely-used software. Current status indicates that the exploitation is confirmed, but further details on mitigation or patching were not provided.

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Timeline

2026-10-26
Data leak confirmed by KB Kookmin Bank
KB Kookmin Bank announced that an additional 2,091 individuals had their data leaked due to the PHP vulnerability exploitation.
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Common questions

What systems are affected by the PHP flaw?
The articles do not specify which systems are affected, but the vulnerability impacts hidden sites using PHP.
Is there a patch available for the PHP vulnerability?
The articles do not mention any patches or mitigation strategies for the PHP vulnerability.
How many records were leaked in total?
KB Kookmin Bank confirmed that 2,091 records were leaked due to the exploitation.