CVE-2023-6294Public exploitNetwork attack vector

Authenticated SSRF and file read via import URL

Published Feb 12, 2024 · Updated Apr 24, 2025

Server-side request forgery in Sygnoos Popup Builder before 4.2.6 allows remote authenticated users to read files or request internal URLs. The sgpb_import_subscribers AJAX handler accepts an unvalidated importListURL value and retrieves a supplied URL or filesystem traversal path, returning fetched content in its response. Exploitation requires a valid nonce and an administrator account on a subsidiary site in a WordPress Multisite installation.

CVSS severity7.2
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Sygnoos Popup Builder before 4.2.6 allows remote authenticated users to read files or request internal URLs. The sgpb_import_subscribers AJAX handler accepts an unvalidated importListURL value and retrieves a supplied URL or filesystem traversal path, returning fetched content in its response. Exploitation requires a valid nonce and an administrator account on a subsidiary site in a WordPress Multisite installation.

The record

CVE
CVE-2023-6294
Published
Feb 12, 2024
Updated
Apr 24, 2025
Vendor
Sygnoos
Product
Popup Builder
Classifications
CWE-918, CWE-22, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2025Record 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 <4.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Sygnoos · Popup Builderversion=0 <4.2.6

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

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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