CVE-2026-54159Network attack vector

Unauthenticated RCE via cached PHP object injection

Published Jul 17, 2026 · Updated Jul 17, 2026

PHP object injection in PrestaShop Faceted Search 3.0.0 through 4.0.3 allows remote attackers to execute code via a crafted filter URL. The getFromCache() method in src/Filters/Block.php passes cache data derived from an unvalidated price or weight slider value to native unserialize(), enabling a gadget chain to write a PHP webshell. A front-office filter template containing a price or weight slider must be displayed; no authentication or user interaction is required.

CVSS severity10.0
Critical
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in PrestaShop Faceted Search 3.0.0 through 4.0.3 allows remote attackers to execute code via a crafted filter URL. The getFromCache() method in src/Filters/Block.php passes cache data derived from an unvalidated price or weight slider value to native unserialize(), enabling a gadget chain to write a PHP webshell. A front-office filter template containing a price or weight slider must be displayed; no authentication or user interaction is required.

The record

CVE
CVE-2026-54159
Published
Jul 17, 2026
Updated
Jul 17, 2026
Vendor
PrestaShop
Product
Faceted Search
Classifications
CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 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=>= 3.0.0, < 4.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PrestaShop · Faceted Searchversion=>= 3.0.0, < 4.0.4

Published CVSS scores

10.0GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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