CVE-2023-0924Public exploitNetwork attack vector

Administrator code execution via unchecked popup image upload

Published May 2, 2023 · Updated Jan 30, 2025

Unrestricted file upload in Zyrex POPUP through 1.0 allows remote authenticated users with Administrator access to execute PHP code. The popup creation form accepts a PHP file as an image without validating its type, stores it under wp-content/uploads/zyrex_popup, and serves it for execution. Administrator-level access is required; activating the popup runs the uploaded payload when the popup is displayed, enabling server-side code execution.

CVSS severity7.2
High
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Zyrex POPUP through 1.0 allows remote authenticated users with Administrator access to execute PHP code. The popup creation form accepts a PHP file as an image without validating its type, stores it under wp-content/uploads/zyrex_popup, and serves it for execution. Administrator-level access is required; activating the popup runs the uploaded payload when the popup is displayed, enabling server-side code execution.

The record

CVE
CVE-2023-0924
Published
May 2, 2023
Updated
Jan 30, 2025
Vendor
Zyrex
Product
POPUP Zyrex
Classifications
CWE-434, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 30, 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 <=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Zyrex · POPUP Zyrexversion=0 <=1.0

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
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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