Blocksy <= 2.0.39 - Authenticated (Contributor+) Stored Cross-Site Scripting via About Me block

2024-04-24 00:00

Ngô Thiên An (ancorn_)

Strategic Overview

Status

Patched in 2.0.40

Affected ThemeBlocksy

Affected Version<= 2.0.39

CVSS6.4Medium

CVECVE-2024-3747

View all Blocksy vulnerabilities

Vulnerability Overview

The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the className parameter in the About Me block in all versions up to, and including, 2.0.39 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access 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 2.0.40, or a newer patched version --- IDENTIFIER: CWE-20 (Improper Input Validation) The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

External References

https://www.cve.org/CVERecord?id=CVE-2024-3747 https://www.wordfence.com/threat-intel/vulnerabilities/id/e3f71928-3f1d-4c15-8655-41cdfb707370

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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