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GHSA-pj5h-5q6c-3pfx
payloadpayloadImpact
Under certain external upload configurations, Payload could send authentication data to a destination that was not verified as trusted. If the affected request contained a valid session, this could expose that session to an unintended recipient.
You are affected if:
- You have enabled external URL-based upload retrieval, where authenticated requests can trigger it.
Patches
Payload now validates the destination before forwarding authentication data and reapplies that validation when a request changes destination.
Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.
Workarounds
It is recommended to update all Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.
If you cannot, a valid workaround exists:
- Disable external URL-based upload retrieval where practical.
- If you cannot disable it, configure the upload header filter to remove authentication data from outbound file requests.
- Restrict access to the affected upload functionality.
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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.
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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