WordPress Fancy Comments <= 1.2.10 - Authenticated (Contributor+) Stored Cross Site Scripting via Shortcode

2023-02-13 00:00

István Márton

Strategic Overview

Status

Patched in 1.2.11

Affected PluginFancy Comments WordPress

Affected Version<= 1.2.10

CVSS6.4Medium

CVECVE-2023-23670

View all Fancy Comments WordPress vulnerabilities

Vulnerability Overview

WordPress Fancy Comments Plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.2.10 due to insufficient input sanitization and output escaping on user supplied attributes passed to the plugin's shortcodes. 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 1.2.11, 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-2023-23670 https://www.wordfence.com/threat-intel/vulnerabilities/id/2508adc4-2a2f-4b6c-9b5a-da85d94226a0

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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