CVE-2024-1529Network attack vector

Browser-session hijacking via unencoded add-user parameters

Published Mar 12, 2024 · Updated Aug 12, 2024

Cross-site scripting in CMS Made Simple 2.2.14 allows remote attackers to partially hijack an authenticated user's browser session. The /admin/adduser.php handler insufficiently encodes multiple attacker-controlled parameters before returning them in an administrative page. Exploitation requires user interaction by an authenticated administrative user; the reported consequence is partial control of that browser session.

CVSS severity7.4
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in CMS Made Simple 2.2.14 allows remote attackers to partially hijack an authenticated user's browser session. The /admin/adduser.php handler insufficiently encodes multiple attacker-controlled parameters before returning them in an administrative page. Exploitation requires user interaction by an authenticated administrative user; the reported consequence is partial control of that browser session.

The record

CVE
CVE-2024-1529
Published
Mar 12, 2024
Updated
Aug 12, 2024
Vendor
CMS Made Simple Foundation
Product
CMS Made Simple
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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=2.2.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CMS Made Simple Foundation · CMS Made Simpleversion=2.2.14

Published CVSS scores

7.4Spanish National Cybersecurity Institute, S.A. (INCIBE)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
6.1NIST National Vulnerability DatabaseCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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