WP RSS Aggregator <= 4.19.1 - Admin+ Stored Cross-Site Scripting

2021-11-01 00:00

Huy Nguyen

Strategic Overview

Status

Patched in 4.19.2

Affected PluginWP RSS Aggregator – RSS Import, Feed to Post, Autoblogging, AI Content

Affected Version<= 4.19.1

CVSS4.8Medium

CVECVE-2021-24768

View all WP RSS Aggregator – RSS Import, Feed to Post, Autoblogging, AI Content vulnerabilities

Vulnerability Overview

The WP RSS Aggregator WordPress plugin before 4.19.2 does not properly sanitise and escape the URL to Blacklist field, allowing malicious HTML to be inserted by high privilege users even when the unfiltered_html capability is disallowed, which could lead to Cross-Site Scripting issues.

Technical Analysis

REMEDIATION: Update to version 4.19.2, 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-2021-24768 https://www.wordfence.com/threat-intel/vulnerabilities/id/b0d8a530-53fd-4e2f-aa57-d75c89dc2a51

CVSS Vector

4.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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