CVE-2023-29631Public exploitNetwork attack vector

Unauthenticated code execution via unrestricted PHP upload

Published Jun 5, 2023 · Updated Jan 31, 2025

Unrestricted file upload in Joommasters Jms Slider 1.6.0 allows remote attackers to execute PHP code through its AJAX endpoint. The anonymously reachable ajax_jmsslider.php handler accepts a data_image upload as an image without blocking executable PHP content. A front-office-visible secure_key value and crafted addLayer request are sufficient to place executable code on the PrestaShop server, granting control in the web server context.

CVSS severity9.8
Critical
EPSS probability0.67%
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 Joommasters Jms Slider 1.6.0 allows remote attackers to execute PHP code through its AJAX endpoint. The anonymously reachable ajax_jmsslider.php handler accepts a data_image upload as an image without blocking executable PHP content. A front-office-visible secure_key value and crafted addLayer request are sufficient to place executable code on the PrestaShop server, granting control in the web server context.

The record

CVE
CVE-2023-29631
Published
Jun 5, 2023
Updated
Jan 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1505.003, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 31, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8MITRE CNACVSS:3.1/AV:N/AC:L/PR:N/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.

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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Web Shell
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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