Real Cookie Banner <= 3.4.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

2022-12-23 00:00

István Márton

Strategic Overview

Status

Patched in 3.4.10

Affected PluginReal Cookie Banner: GDPR & ePrivacy Cookie Consent

Affected Version<= 3.4.9

CVSS6.4Medium

CVECVE-2022-4507

View all Real Cookie Banner: GDPR & ePrivacy Cookie Consent vulnerabilities

Vulnerability Overview

The Real Cookie Banner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcodes in versions up to, and including, 3.4.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with contributor-level permissions and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 3.4.10, 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-2022-4507 https://www.wordfence.com/threat-intel/vulnerabilities/id/e8a78f06-1af2-462e-b328-0e9e603ad904

CVSS Vector

6.4

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

Base

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

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