CVE-2022-29418

Night Mode <= 1.0.0 - Authenticated (Admin+) Stored Cross-Site Scripting

2022-04-25 00:00

Strategic Overview

Status: Patched in 1.4.0
Affected Plugin: Night Mode
Affected Version: <= 1.0.0
CVSS: 5.5Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-29418

At a glance

CVE-2022-29418 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Night Mode WordPress plugin, affecting versions <= 1.0.0. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 1.4.0; sites on affected versions should update now. Disclosed April 2022, reported by R3N0.

Vulnerability Overview

Authenticated (admin user role) Persistent Cross-Site Scripting (XSS) in Mark Daniels Night Mode plugin <= 1.0.0 on WordPress via vulnerable parameters: &ntmode_page_setting[enable-me], &ntmode_page_setting[bg-color], &ntmode_page_setting[txt-color], &ntmode_page_setting[anc_color].

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Night Mode <= 1.0.0 takes an account at Admin level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Night Mode the fix is 1.4.0: builds <= 1.0.0 are affected, anything from 1.4.0 onward is not.

Remediation

Update to version 1.4.0, or a newer patched version

How does WordSec protect against this?

An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Night Mode 1.4.0 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-29418 https://www.wordfence.com/threat-intel/vulnerabilities/id/f1666371-9401-4b62-b44e-abc7fb4c6138 https://nvd.nist.gov/vuln/detail/CVE-2022-29418

CVSS Vector

5.5

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

Base

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

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