CVE-2025-13840Network attack vector

Stored XSS via unescaped shortcode attribute

Published Dec 12, 2025 · Updated Dec 12, 2025

Stored cross-site scripting in Bukazu Search Widget 3.3.2 and earlier allows remote authenticated users to inject browser scripts. The bukazu_search shortcode places its user-supplied shortcode attribute into generated page output without sufficient sanitization or context-appropriate escaping. Contributor-level access is required, and the stored script executes only when a visitor opens an injected page.

CVSS severity6.4
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Bukazu Search Widget 3.3.2 and earlier allows remote authenticated users to inject browser scripts. The bukazu_search shortcode places its user-supplied shortcode attribute into generated page output without sufficient sanitization or context-appropriate escaping. Contributor-level access is required, and the stored script executes only when a visitor opens an injected page.

The record

CVE
CVE-2025-13840
Published
Dec 12, 2025
Updated
Dec 12, 2025
Vendor
Bob van Oorschot
Product
Bukazu Search Widget
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 12, 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=* <=3.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bob van Oorschot · Bukazu Search Widgetversion=* <=3.3.2

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.

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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')
T1059.007JavaScript/JScript

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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