CVE-2025-22800

Medium

Published: 13 January 2025

Published

13 January 2025

Modified

23 April 2026

KEV Added

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Patch

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CVSS Score 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS Score 0.0007 20.4th percentile

Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-22800 is a medium-severity Missing Authorization (CWE-862) vulnerability in Wpexperts Post Smtp. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and AC-6 (Least Privilege).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

AC-3 Access Enforcement good match

prevent

Directly enforces approved authorizations for logical access to system resources, mitigating the missing authorization flaw that allows low-privileged users to exploit the Post SMTP plugin.

AC-6 Least Privilege partial match

prevent

Restricts privileges to the minimum necessary for users and processes, limiting the potential impact of low-privileged exploitation in the plugin's broken access control.

CM-6 Configuration Settings partial match

prevent

Establishes and enforces secure configuration settings for software like the Post SMTP plugin, preventing exploitation of incorrectly configured access control security levels.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1499 Endpoint Denial of Service Impact

Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.

attack.mitre.org →

Why these techniques?

Missing authorization in public-facing WordPress plugin enables remote exploitation for low-impact DoS by low-privileged users.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

Missing Authorization vulnerability in Saad Iqbal Post SMTP post-smtp allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Post SMTP: from n/a through <= 2.9.11.

Deeper analysisAI

CVE-2025-22800 is a missing authorization vulnerability (CWE-862) in the Post SMTP WordPress plugin developed by Saad Iqbal. The flaw, which allows exploiting incorrectly configured access control security levels, affects all versions of the post-smtp plugin up to and including 2.9.11. Published on 2025-01-13, it carries a CVSS v3.1 base score of 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).

A low-privileged user (PR:L) can exploit this vulnerability remotely over the network (AV:N) with low complexity (AC:L) and without requiring user interaction (UI:N). Successful exploitation results in low-impact denial of service (A:L), with no effects on confidentiality or integrity and no change in scope (S:U).

The Patchstack advisory provides details on this broken access control issue in Post SMTP version 2.9.11 and related mitigation guidance, accessible at https://patchstack.com/database/Wordpress/Plugin/post-smtp/vulnerability/wordpress-post-smtp-plugin-2-9-11-broken-access-control-vulnerability?_s_id=cve.