Simple Popup Newsletter <= 1.4.7 - Reflected Cross-Site Scripting

2021-08-13 00:00

p7e4

Strategic Overview

Status

Unpatched

Affected PluginSimple Popup Newsletter

Affected Version<= 1.4.7

CVSS6.1Medium

CVECVE-2021-34658

View all Simple Popup Newsletter vulnerabilities

Vulnerability Overview

The Simple Popup Newsletter WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER['PHP_SELF'] in the ~/simple-popup-newsletter.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.4.7.

Technical Analysis

REMEDIATION: No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. --- 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-2021-34658 https://www.wordfence.com/threat-intel/vulnerabilities/id/15655362-b77f-4ba4-a823-17085de55f85

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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