CVE-2026-3005Public exploitNetwork attack vector

Stored script execution via unescaped thumbnail attributes

Published Apr 9, 2026 · Updated Apr 9, 2026

Stored XSS in Fernando Briano List Category Posts 0 through 0.94.0 allows remote authenticated users to execute scripts via catlist. The thumbnail renderer in include/lcp-thumbnail.php inserts a YouTube image URL, post title, and permalink into HTML attributes without contextual escaping. Contributor-level access is required to store the malicious content, and the script runs in the browser of anyone viewing the affected 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 Fernando Briano List Category Posts 0 through 0.94.0 allows remote authenticated users to execute scripts via catlist. The thumbnail renderer in include/lcp-thumbnail.php inserts a YouTube image URL, post title, and permalink into HTML attributes without contextual escaping. Contributor-level access is required to store the malicious content, and the script runs in the browser of anyone viewing the affected page.

The record

CVE
CVE-2026-3005
Published
Apr 9, 2026
Updated
Apr 9, 2026
Vendor
Fernando Briano
Product
List Category Posts
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 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 <=0.94.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fernando Briano · List Category Postsversion=0 <=0.94.0

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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