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GHSA-7vg8-29qx-jgj8
@payloadcms/storage-s3@payloadcms/storage-s3Impact
An authenticated user could overwrite an existing S3 object belonging to another upload collection, bypassing that collection’s access controls and prior file validation.
You are affected if ALL of these are true:
- Client uploads are enabled for multiple collections that share an S3 bucket.
- useCompositePrefixes is not configured or is set to
false.
Patches
Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.
Workarounds
Disable client uploads until you can upgrade.
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The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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