CVE-2025-12330Network attack vector

Stored XSS via unsanitized article body

Published Oct 27, 2025 · Updated Oct 27, 2025

Stored XSS in Matthew Deaves Willow CMS 1.4.0 and earlier allows remote authenticated users to execute script in visitors' browsers. The Add Post handler accepts unsanitized article body content at /admin/articles/add, stores it, and renders it on public homepage views. Administrator privileges are required to plant the content; any homepage visitor can then have attacker-supplied JavaScript run in the browser.

CVSS severity4.8
Medium
EPSS probability0.25%
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 Matthew Deaves Willow CMS 1.4.0 and earlier allows remote authenticated users to execute script in visitors' browsers. The Add Post handler accepts unsanitized article body content at /admin/articles/add, stores it, and renders it on public homepage views. Administrator privileges are required to plant the content; any homepage visitor can then have attacker-supplied JavaScript run in the browser.

The record

CVE
CVE-2025-12330
Published
Oct 27, 2025
Updated
Oct 27, 2025
Vendor
Matthew Deaves
Product
Willow CMS
Classifications
CWE-94, CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 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=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2
  4. Affected versionversion=1.3
  5. Affected versionversion=1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Matthew Deaves · Willow CMSversion=1.0; version=1.1; version=1.2; version=1.3; version=1.4.0

Published CVSS scores

3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
4.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
1.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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