CVE-2025-12887CWE-862broken-access-control

CVE-2025-12887

Medium · published December 3, 2025

CVSS v3.1
5.4
EPSS
0%
Percentile
19.7
In the wild
Unconfirmed
What it is

The Post SMTP plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.6.1. This is due to the plugin not properly verifying that a user is authorized to update OAuth tokens on the 'handle_gmail_oauth_redirect' function. This makes it possible for authenticated attackers, with subscriber level access and above, to inject invalid or attacker-controlled OAuth credentials. CVE-2025-67563 appears to be a duplicate of this issue.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00282 · 19.7th percentile
Weakness
CWE-862 · Missing Authorization
Published
2025-12-03T18:16Z
References (2)
https://plugins.trac.wordpress.org/changeset/3402203 · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/5bd9f312-99e1-4dc2-855d-90339c2e24da?source=cve · [email protected]
EPSS history
Timeline
  • 03 DEC 12:29Z
    Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App <= 3.6.1 - Missing Authorization to Authenticated (Subscriber+) OAuth Token Update
    cvelistv5