Is CVE-2025-53102 actively exploited?

No active exploitation of CVE-2025-53102 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-53102 be exploited remotely?

Yes. CVE-2025-53102 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-53102?

CVE-2025-53102 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2025-53102

CRITICAL

CVE-2025-53102

CWE-384Published: July 29, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Discourse is an open-source community discussion platform. Prior to version 3.4.7 on the `stable` branch and version 3.5.0.beta.8 on the `tests-passed` branch, upon issuing a physical security key for 2FA, the server generates a WebAuthn challenge, which the client signs. The challenge is not cleared from the user’s session after authentication, potentially allowing reuse and increasing security risk. This is fixed in versions 3.4.7 and 3.5.0.beta.8.

NVD Source

Technical Analysis

CVE-2025-53102 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.