5.4

CVE-2025-12887: saadiqbal post smtp – complete email deliverability and smtp solution with email logs, alerts, backup smtp & mobile app Missing Authorization

CVSS: 5.4v3.1MediumDeferred
Published 03-12-2025Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2025-12887 is a medium (CVSS 5.4) Missing Authorization vulnerability in saadiqbal post smtp – complete email deliverability and smtp solution with email logs, alerts, backup smtp & mobile app. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-12-2025
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

0.00 pp

From 0.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Saadiqbal1 product
Wordpress1 product
  • post-smtp≤ 3.6.1 (fixed in 3.6.2)

2 vendors · 2 products

References

3 links