CVE-2026-75016Network attack vector

Contributor-level script execution via unescaped clientId

Published Sep 18, 2026 · Updated Sep 18, 2026

Stored XSS in WPBlockArt Magazine Blocks 1.8.6 and earlier allows remote authenticated users to execute scripts through News Ticker content. NewsTicker::render() concatenates the clientId block attribute into an HTML class without sanitizing the value or escaping it with esc_attr(). Contributor-level access is sufficient to store the payload, which executes in the browser of any user who opens the affected page.

CVSS severity6.4
Medium
EPSS probability0.35%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in WPBlockArt Magazine Blocks 1.8.6 and earlier allows remote authenticated users to execute scripts through News Ticker content. NewsTicker::render() concatenates the clientId block attribute into an HTML class without sanitizing the value or escaping it with esc_attr(). Contributor-level access is sufficient to store the payload, which executes in the browser of any user who opens the affected page.

The record

CVE
CVE-2026-75016
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
WPBlockArt
Product
Magazine Blocks
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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 <=1.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPBlockArt · Magazine Blocksversion=0 <=1.8.6

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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')
T1203Exploitation for Client Execution

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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