ZeroBounce Email Verification & Validation <= 1.0.11 - Authenticated (Administrator+) Stored Cross-Site Scripting

2023-12-26 00:00

DoYeon Park (p6rkdoye0n)

Strategic Overview

Status

Patched in 1.0.12

Affected PluginZeroBounce Email Verification & Validation

Affected Version<= 1.0.11

CVSS5.5Medium

CVECVE-2023-51374

View all ZeroBounce Email Verification & Validation vulnerabilities

Vulnerability Overview

The ZeroBounce Email Verification & Validation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: Update to version 1.0.12, 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-2023-51374 https://www.wordfence.com/threat-intel/vulnerabilities/id/c7d215e9-e615-46ab-b0b8-b37f10cfae98

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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