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Not in CISA KEV
LOW severity

CVE-2026-33674 — prestashop

LOW

CVE-2026-33674 is a low-severity (CVSS 2) CWE-1173 vulnerability in prestashop/prestashop. A fix is available for prestashop/prestashop — see the affected versions and patch details below.

PrestaShop: Improper Use of Validation Framework

Also known asGHSA-283w-xf3q-788v
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-33674.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs16th percentile — riskier than 16% of all scored CVEsHighest risk
0.00%0.28%0.55%0.83%0.0%0.2%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
🐘prestashop/prestashop🐘prestashop/prestashop

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 improperly use the validation framework. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistprestashop/prestashopall versions8.2.5composer require prestashop/prestashop:^8.2.5
🐘Packagistprestashop/prestashop≥ 9.0.0-alpha.1&&< 9.1.09.1.0composer require prestashop/prestashop:^9.1.0

Affected Products

1 product · 2 configurations
Application
prestashopprestashop
≥ 9.0.0 && < 9.1.0
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for prestashop/prestashop, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update prestashop/prestashop to 8.2.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-33674 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 improperly use the validation framework. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.
O3 Security · Impact-Aware SCA

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CVE-2026-33674: prestashop — Fixed in 8.2.5