Private Comment <= 0.0.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via Label Text Setting

2026-02-17 18:31

Supoj Polsawas (sp0x5ec)

Strategic Overview

Status

Patched in 0.0.5

Affected PluginPrivate Comment

Affected Version<= 0.0.4

CVSS4.4Medium

CVECVE-2026-2281

View all Private Comment vulnerabilities

Vulnerability Overview

The Private Comment plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Label text' setting in all versions up to, and including, 0.0.4. This is due to insufficient input sanitization and output escaping on the plugin's label text option. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

REMEDIATION: Update to version 0.0.5, 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-2026-2281 https://www.wordfence.com/threat-intel/vulnerabilities/id/94d75f18-67ab-4367-982b-73e256d5dbe2

CVSS Vector

4.4

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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