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Advisory record · GHSA-m5f5-28qr-9g9r

prestashop/ps_facetedsearch: PHP Object Injection in faceted search cache allows unauthenticated RCE

CVSS 10.0 CriticalCriticalEPSS 0.0075 · 55th percentile

Critical, because:

  • CVSS score 10.0: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 10 Jul 2026, 20:36 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
prestashop/ps_facetedsearchPackagist>=3.0.0, <4.0.44.0.4
Identifiers
GHSA-m5f5-28qr-9g9r · CVE-2026-54159 · PKSA-36b6-kgzr-fpm3
Weakness (CWE)
CWE-74
Tags
Published
10 Jul 2026
Updated
10 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The prestashop/ps_facetedsearch package versions 3.0.0 through 4.0.3 are affected by a PHP Object Injection flaw in its faceted search cache. An unauthenticated remote attacker can send a single crafted front-office request, which can lead to arbitrary PHP file writes and remote code execution on the server. Upgrade prestashop/ps_facetedsearch to version 4.0.4. Until then, removing the price and weight slider filters from front-office templates is a workaround.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
10.0 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0075, the 55th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:25 UTC First seen by agentprime
  2. 31 Oct 2026, 14:25 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.