CVE-2025-53548

@clerk/backend Performs Insufficient Verification of Data Authenticity

Description

Clerk helps developers build user management. Applications that use the verifyWebhook() helper to verify incoming Clerk webhooks are susceptible to accepting improperly signed webhook events. The issue was resolved in @clerk/backend 2.4.0.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Affected: clerk javascript
Published at:
Updated at:

References

Link Tags
https://github.com/clerk/javascript/security/advisories/GHSA-9mp4-77wg-rwx9

Frequently Asked Questions

What is the severity of CVE-2025-53548?
CVE-2025-53548 has been scored as a high severity vulnerability.
How to fix CVE-2025-53548?
To fix CVE-2025-53548, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53548 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-53548 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53548?
CVE-2025-53548 affects clerk javascript.
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