CVE-2026-1886Public exploitNetwork attack vector

Stored script execution via unescaped shortcode margin

Published Mar 21, 2026 · Updated Mar 21, 2026

Stored XSS in Go Night Pro | WordPress Dark Mode Plugin 1.1.0 and earlier allows remote authenticated users to inject scripts. The go-night-pro-shortcode renderer places the user-controlled margin attribute into page output without sufficient sanitization or escaping. Contributor-level access is required, and the stored script executes in a visitor's browser whenever the injected page is viewed.

CVSS severity6.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Go Night Pro | WordPress Dark Mode Plugin 1.1.0 and earlier allows remote authenticated users to inject scripts. The go-night-pro-shortcode renderer places the user-controlled margin attribute into page output without sufficient sanitization or escaping. Contributor-level access is required, and the stored script executes in a visitor's browser whenever the injected page is viewed.

The record

CVE
CVE-2026-1886
Published
Mar 21, 2026
Updated
Mar 21, 2026
Vendor
Hamid Reza Sepehr
Product
Go Night Pro | WordPress Dark Mode Plugin
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Hamid Reza Sepehr · Go Night Pro | WordPress Dark Mode Pluginversion=* <=1.1.0

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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