CVE-2024-2541Network attack vector

Unauthenticated subscriber data disclosure via CSV imports

Published Aug 29, 2024 · Updated Apr 8, 2026

Sensitive information exposure in Sygnoos Popup Builder 4.3.6 and earlier allows remote attackers to read imported subscriber data. The public record identifies the Subscribers Import feature and Importer.php, but does not disclose the request path or failed access control that exposes the CSV-derived records. Exploitation requires a prior administrator CSV import and exposes subscriber names, email addresses, and potentially other personal data.

CVSS severity5.3
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in Sygnoos Popup Builder 4.3.6 and earlier allows remote attackers to read imported subscriber data. The public record identifies the Subscribers Import feature and Importer.php, but does not disclose the request path or failed access control that exposes the CSV-derived records. Exploitation requires a prior administrator CSV import and exposes subscriber names, email addresses, and potentially other personal data.

The record

CVE
CVE-2024-2541
Published
Aug 29, 2024
Updated
Apr 8, 2026
Vendor
Sygnoos
Product
Popup Builder
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=0 <=4.3.3
  2. Affected versionversion=0 <=4.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sygnoos · Popup Builderversion=0 <=4.3.3; version=0 <=4.3.6

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

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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