CVE-2024-33424Public exploitNetwork attack vector

Stored script execution via Downloads label injection

Published May 1, 2024 · Updated Aug 2, 2024

Stored XSS in CMSimple 5.15 allows attackers to execute scripts by saving a crafted Downloads language parameter. The Language settings workflow saves the Adminmenu Downloads value and renders it as active HTML rather than encoding it as text. Exploitation requires access to save that setting and browser rendering of the result; the public report does not document the authorization gate.

CVSS severity6.1
Medium
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 CMSimple 5.15 allows attackers to execute scripts by saving a crafted Downloads language parameter. The Language settings workflow saves the Adminmenu Downloads value and renders it as active HTML rather than encoding it as text. Exploitation requires access to save that setting and browser rendering of the result; the public report does not document the authorization gate.

The record

CVE
CVE-2024-33424
Published
May 1, 2024
Updated
Aug 2, 2024
Vendor
CMSimple
Product
CMSimple
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=5.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

CMSimple · CMSimpleversion=5.15

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

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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