WP Upload Restriction <= 2.2.4 – Authenticated (Subscriber+) Stored Cross-Site Scripting

2021-07-07 00:00

Angelo Luigi Righi (angelor)

Strategic Overview

Status

Patched in 2.2.5

Affected PluginWP Upload Restriction

Affected Version<= 2.2.4

CVSS6.4Medium

CVECVE-2021-34625

View all WP Upload Restriction vulnerabilities

Vulnerability Overview

The WP Upload Restriction plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'saveCustomType' function in versions up to, and including, 2.2.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with minimal permissions, such as a subscriber, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 2.2.5, 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-2021-34625 https://www.wordfence.com/threat-intel/vulnerabilities/id/1257da54-e008-4e25-bc83-36246f00960e

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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