// For flags

CVE-2023-6621

Post SMTP < 2.8.7 - Reflected Cross-Site Scripting

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

POST SMTP WordPress plugin anterior a 2.8.7 no sanitiza ni escapa el parámetro msg antes de devolverlo a la página, lo que genera cross site scripting reflejado que podría usarse contra usuarios con privilegios elevados, como el administrador.

*Credits: Alex Sanford, WPScan
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-12-08 CVE Reserved
  • 2024-01-03 CVE Published
  • 2024-01-10 EPSS Updated
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Wpexperts
Search vendor "Wpexperts"
Post Smtp
Search vendor "Wpexperts" for product "Post Smtp"
< 2.8.7
Search vendor "Wpexperts" for product "Post Smtp" and version " < 2.8.7"
wordpress
Affected