CVE-2025-23896Network attack vector

Contributor-level stored XSS via unsanitized shortcode input

Published Jan 16, 2025 · Updated May 11, 2026

Stored cross-site scripting in Oncle Tom Mindmeister Shortcode 1.0 and earlier allows remote authenticated users to inject web scripts. The shortcode path accepts contributor-controlled content without sufficient input sanitization or output escaping, so the payload is stored in a page and executes in a visitor's browser. Contributor-level access is required to plant the payload, and execution occurs when another user visits the injected page, exposing that user's browser session to script actions in the site's origin.

CVSS severity6.5
Medium
EPSS probability0.37%
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 Oncle Tom Mindmeister Shortcode 1.0 and earlier allows remote authenticated users to inject web scripts. The shortcode path accepts contributor-controlled content without sufficient input sanitization or output escaping, so the payload is stored in a page and executes in a visitor's browser. Contributor-level access is required to plant the payload, and execution occurs when another user visits the injected page, exposing that user's browser session to script actions in the site's origin.

The record

CVE
CVE-2025-23896
Published
Jan 16, 2025
Updated
May 11, 2026
Vendor
Oncle Tom
Product
Mindmeister Shortcode
Classifications
CWE-79, CAPEC-588, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 16, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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 <=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oncle Tom · Mindmeister Shortcodeversion=0 <=1.0

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

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-588DOM-Based XSS
T1059.007Command and Scripting Interpreter: JavaScript

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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