6.1
MEDIUM
CVE-2023-6629
WordPress Best Mail SMTP Reflected Cross-Site Scripting
Description

The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

INFO

Published Date :

Jan. 3, 2024, 5:15 a.m.

Last Modified :

Jan. 9, 2024, 8:53 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-6629 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Wpexperts post_smtp
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-6629 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-6629 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 09, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/Wizard/NewWizard.php#L396 No Types Assigned https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/Wizard/NewWizard.php#L396 Issue Tracking
    Changed Reference Type https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3012318%40post-smtp%2Ftrunk&old=3006604%40post-smtp%2Ftrunk&sfp_email=&sfph_mail=#file4 No Types Assigned https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3012318%40post-smtp%2Ftrunk&old=3006604%40post-smtp%2Ftrunk&sfp_email=&sfph_mail=#file4 Patch
    Changed Reference Type https://www.wordfence.com/threat-intel/vulnerabilities/id/7681f984-d488-4da7-afe1-988e5ad012f2?source=cve No Types Assigned https://www.wordfence.com/threat-intel/vulnerabilities/id/7681f984-d488-4da7-afe1-988e5ad012f2?source=cve Third Party Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:wpexperts:post_smtp:*:*:*:*:*:wordpress:*:* versions up to (excluding) 2.8.7
  • CVE Received by [email protected]

    Jan. 03, 2024

    Action Type Old Value New Value
    Added Description The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
    Added Reference Wordfence https://www.wordfence.com/threat-intel/vulnerabilities/id/7681f984-d488-4da7-afe1-988e5ad012f2?source=cve [No types assigned]
    Added Reference Wordfence https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/Wizard/NewWizard.php#L396 [No types assigned]
    Added Reference Wordfence https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3012318%40post-smtp%2Ftrunk&old=3006604%40post-smtp%2Ftrunk&sfp_email=&sfph_mail=#file4 [No types assigned]
    Added CVSS V3.1 Wordfence AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-6629 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-6629 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.00%

score

0.38943

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability