CVE-2025-8902Network attack vector

Stored XSS via unescaped do_sidebar attributes

Published Sep 23, 2025 · Updated Sep 23, 2025

Stored XSS in Widget Options Extended 5.2.1 and earlier allows remote authenticated users to inject scripts through do_sidebar attributes. The shortcode accepts user-supplied attributes without sufficient sanitization and renders them without output escaping, persisting attacker-controlled JavaScript in page content. Contributor-level access is required, and the script executes in the browser of anyone who opens the injected page.

CVSS severity6.4
Medium
EPSS probability0.20%
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 Widget Options Extended 5.2.1 and earlier allows remote authenticated users to inject scripts through do_sidebar attributes. The shortcode accepts user-supplied attributes without sufficient sanitization and renders them without output escaping, persisting attacker-controlled JavaScript in page content. Contributor-level access is required, and the script executes in the browser of anyone who opens the injected page.

The record

CVE
CVE-2025-8902
Published
Sep 23, 2025
Updated
Sep 23, 2025
Vendor
Marketing Fire, LLC
Product
Widget Options Extended
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 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=* <=5.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Marketing Fire, LLC · Widget Options Extendedversion=* <=5.2.1

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')
T1059.007Command and Scripting Interpreter: JavaScript

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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