FluentSMTP <= 2.0.0 - Authenticated (Admin+) Stored Cross-Site Scripting

2021-07-29 00:00

YoshiKen

Strategic Overview

Status

Patched in 2.0.1

Affected PluginFluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider

Affected Version< 2.0.1

CVSS5.5Medium

CVECVE-2021-24528

View all FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider vulnerabilities

Vulnerability Overview

The FluentSMTP WordPress plugin before 2.0.1 does not sanitize parameters before storing the settings in the database, nor does the plugin escape the values before outputting them when viewing the SMTP settings set by this plugin, leading to a stored cross site scripting (XSS) vulnerability. Only users with roles capable of managing plugins can modify the plugin's settings.

Technical Analysis

REMEDIATION: Update to version 2.0.1, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2021-24528 https://www.wordfence.com/threat-intel/vulnerabilities/id/b99248e9-b34f-4f99-9db1-a4dc2dd45b9c

CVSS Vector

5.5

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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