CVE-2025-0660Network attack vector

Stored XSS via unencoded folder selector names

Published Mar 10, 2025 · Updated Mar 11, 2025

Stored XSS in Concrete CMS 9.0.0 through 9.3.9 allows remote authenticated users to execute script via crafted folder names. The ConcreteFileDirectoryInput.vue folder selector inserts directoryName into TomSelect option and item HTML without HTML encoding; the patch converts it through a text node before insertion. Administrator privileges are required to create the stored name, and another user's browser must render the selector for script execution and limited data exposure.

CVSS severity4.8
Medium
EPSS probability0.32%
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 Concrete CMS 9.0.0 through 9.3.9 allows remote authenticated users to execute script via crafted folder names. The ConcreteFileDirectoryInput.vue folder selector inserts directoryName into TomSelect option and item HTML without HTML encoding; the patch converts it through a text node before insertion. Administrator privileges are required to create the stored name, and another user's browser must render the selector for script execution and limited data exposure.

The record

CVE
CVE-2025-0660
Published
Mar 10, 2025
Updated
Mar 11, 2025
Vendor
Concrete CMS
Product
Concrete CMS
Classifications
CWE-79, CWE-20, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 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=9.0.0 <9.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Concrete CMS · Concrete CMSversion=9.0.0 <9.4.0

Published CVSS scores

4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8Concrete CMSCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-20Improper Input Validation
CAPEC-592Stored XSS
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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