CVE-2026-4011Network attack vector

Contributor-level stored XSS via unescaped shortcode attribute

Published Apr 15, 2026 · Updated Apr 15, 2026

Stored XSS in WPGO Plugins Power Charts Lite 0.1.0 and earlier allows remote authenticated users to inject scripts through the [pc] shortcode. The pc_shortcode() function concatenates the user-controlled id attribute into an HTML div class without sanitization or output escaping, then passes the markup through html_entity_decode(). Contributor-level access is required, and the injected script executes whenever a user views the stored page.

CVSS severity6.4
Medium
EPSS probability0.27%
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 WPGO Plugins Power Charts Lite 0.1.0 and earlier allows remote authenticated users to inject scripts through the [pc] shortcode. The pc_shortcode() function concatenates the user-controlled id attribute into an HTML div class without sanitization or output escaping, then passes the markup through html_entity_decode(). Contributor-level access is required, and the injected script executes whenever a user views the stored page.

The record

CVE
CVE-2026-4011
Published
Apr 15, 2026
Updated
Apr 15, 2026
Vendor
WPGO Plugins
Product
Power Charts – Responsive Beautiful Charts & Graphs
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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=0 <=0.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPGO Plugins · Power Charts – Responsive Beautiful Charts & Graphsversion=0 <=0.1.0

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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