CVE-2024-46331Public exploitNetwork attack vector

Authenticated user redirection via unvalidated login destination

Published Sep 27, 2024 · Updated Sep 27, 2024

Open redirect in ModStartCMS 8.8.0 allows remote attackers to redirect authenticated users to arbitrary websites via crafted login URLs. The /admin/login endpoint accepts the redirect query parameter as an absolute external URL and uses it as the post-authentication destination without restricting its origin. A targeted user must open the crafted URL and successfully log in; the demonstrated consequence is navigation to attacker-chosen content suitable for phishing.

CVSS severity7.2
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in ModStartCMS 8.8.0 allows remote attackers to redirect authenticated users to arbitrary websites via crafted login URLs. The /admin/login endpoint accepts the redirect query parameter as an absolute external URL and uses it as the post-authentication destination without restricting its origin. A targeted user must open the crafted URL and successfully log in; the demonstrated consequence is navigation to attacker-chosen content suitable for phishing.

The record

CVE
CVE-2024-46331
Published
Sep 27, 2024
Updated
Sep 27, 2024
Vendor
ModStart
Product
ModStartCMS
Classifications
CWE-601, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 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=8.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ModStart · ModStartCMSversion=8.8.0

Published CVSS scores

7.2CISA ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1566.002Spearphishing Link

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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