CVE-2026-24576Network attack vector

Contributor-level stored XSS via insufficient input sanitization

Published Jan 23, 2026 · Updated Jan 23, 2026

Stored XSS in COP UX Flat 5.4.0 and earlier allows remote authenticated users to inject scripts into WordPress pages. Published records identify insufficient input sanitization and output escaping but do not name the affected field, function, or rendering path. Contributor-level access is required; injected scripts persist in pages and execute when those pages are accessed, exposing viewers' browser context to script actions.

CVSS severity6.4
Medium
EPSS probability0.21%
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 COP UX Flat 5.4.0 and earlier allows remote authenticated users to inject scripts into WordPress pages. Published records identify insufficient input sanitization and output escaping but do not name the affected field, function, or rendering path. Contributor-level access is required; injected scripts persist in pages and execute when those pages are accessed, exposing viewers' browser context to script actions.

The record

CVE
CVE-2026-24576
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
COP
Product
UX Flat
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=n/a <=<= 5.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

COP · UX Flatversion=n/a <=<= 5.4.0

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')
CAPEC-592Stored XSS
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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