CVE-2024-1245Network attack vector

Stored XSS via unsanitized file attributes

Published Feb 9, 2024 · Updated Aug 19, 2024

Stored XSS in Concrete CMS 9.0.0 through 9.2.4 allows remote authenticated users to execute JavaScript through file attributes. The Edit Attributes page stores insufficiently sanitized file tag or description values and renders them when the file is edited again. A rogue administrator must save the payload, and another administrator must open the same file for editing, exposing that administrator's browser context.

CVSS severity2.4
Low
EPSS probability0.40%
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 9.2.4 allows remote authenticated users to execute JavaScript through file attributes. The Edit Attributes page stores insufficiently sanitized file tag or description values and renders them when the file is edited again. A rogue administrator must save the payload, and another administrator must open the same file for editing, exposing that administrator's browser context.

The record

CVE
CVE-2024-1245
Published
Feb 9, 2024
Updated
Aug 19, 2024
Vendor
Concrete CMS
Product
Concrete CMS
Classifications
CWE-20, CAPEC-63, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2024Record 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 <9.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Concrete CMS · Concrete CMSversion=9.0.0 <9.2.5

Published CVSS scores

2.4Concrete CMS Security TeamCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-63Cross-Site Scripting (XSS)
T1059.007JavaScript/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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