EVENT / TOPICHistorical

Researcher exploits PHP vulnerability in Steal My Bitcoin challenge, but fails to claim prize due to incorrect private key

1 reports1 sources10/26/2026 updated

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Researcher Killa exploited a PHP vulnerability to breach the Steal My Bitcoin challenge server and extract hidden wallet credentials. Challenge operator James Pavur confirmed the attack and implemented configuration changes within three hours. However, despite successfully breaching the server, the researcher was unable to claim the prize because the operator had stored an incorrect Bitcoin private key.

Written with AI from the reporting · updated 10/26/2026

Latest developmentOct 26, 20:30

Researcher exploits PHP flaw to win Bitcoin challenge, operator confirms server breach

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1Unclassified fact stationOct 25, 00:00recorded Oct 26, 20:45single sourcerevised
研究人员利用 PHP 漏洞攻破 Steal My Bitcoin 挑战赛
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Evidence & revisions · 1 source records
Subject：
Killa
Action：
成功执行代码并提取隐藏钱包凭证
Object：
Steal My Bitcoin 挑战赛服务器
Occurred (fact side)：
Oct 25, 00:00
CryptoSlate ↗Report pageRevision 2 · currently revised
Published (valid side)：
Oct 26, 20:30
First seen (known side)：
Oct 26, 20:45
Fact stationSingle source · one-sided claimRevised
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Oct 26

20:30
CryptoSlateRelated fact: single sourceSource report revised
Researcher exploits PHP flaw to win Bitcoin challenge, operator confirms server breach
Report first recorded Oct 26, 20:45
Researcher Killa successfully exploited critical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619 to breach the Steal My Bitcoin challenge server on October 25, extracting a hidden wallet credential less than three hours after the operator reconfigured the server. Although the operator confirmed the exploit, the winner could not claim the Bitcoin prize due to an incorrect private key stored by the operator.
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