CVE-2024-0559Public exploitNetwork attack vector

Stored XSS via unescaped widget-option attributes

Published Mar 11, 2024 · Updated Mar 20, 2025

Stored XSS in Clever Widgets Enhanced Text Widget before 1.6.6 allows remote authenticated users to execute script through widget fields. The plugin stores crafted Title, Title URL, or Widget CSS class values and outputs them into HTML attributes without adequate validation or escaping. Administrator or editor access is required, but the attack remains effective when unfiltered_html is disabled and executes when another user interacts with the affected widget output.

CVSS severity6.5
Medium
EPSS probability0.50%
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 Clever Widgets Enhanced Text Widget before 1.6.6 allows remote authenticated users to execute script through widget fields. The plugin stores crafted Title, Title URL, or Widget CSS class values and outputs them into HTML attributes without adequate validation or escaping. Administrator or editor access is required, but the attack remains effective when unfiltered_html is disabled and executes when another user interacts with the affected widget output.

The record

CVE
CVE-2024-0559
Published
Mar 11, 2024
Updated
Mar 20, 2025
Vendor
Copy Delete Posts
Product
Enhanced Text Widget
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2025Record 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 <1.6.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Copy Delete Posts · Enhanced Text Widgetversion=0 <1.6.6

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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