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-Basic Information
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Technology
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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| silverstripe/cms | composer | < 3.5.5 | 3.5.5 |
| silverstripe/cms | composer | >= 3.6, < 3.6.1 | 3.6.1 |
The vulnerability stems from measurable timing differences in user existence checks during authentication flows. The SecurityController methods handle form submissions while Member class methods implement security-critical operations. Pre-patch implementations would execute different code paths (password hashing/email sending) based on user validity, creating observable timing variances. These functions directly process sensitive authentication operations and would appear in stack traces during exploitation attempts.
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