CVE-2025-12677 KiotViet Sync <= 1.8.5 - Unauthenticated Webhook Key Exposure

Medium 5.3 Published Updated

Unauthenticated attackers can extract webhook tokens from the KiotViet Sync WordPress plugin if configured, leading to sensitive information exposure.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-12677?

CVE-2025-12677 is a medium-severity vulnerability in mykiot KiotViet Sync, published on 5 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The KiotViet Sync plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.8.5 via the register_api_route() function in kiotvietsync/includes/public_actions/WebHookAction.php. This makes it possible for unauthenticated attackers to extract the webhook token value when configured.

Weakness: CWE-200

Which versions are affected by CVE-2025-12677?

How do I fix CVE-2025-12677?

No fix has been published for CVE-2025-12677 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12677 being exploited?

There is no known exploitation of CVE-2025-12677 in the wild and no public exploit code.

Sources

Also known as GHSA-48mf-wgq9-gwrv.

Is CVE-2025-12677 in your software?

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