CVE-2026-25597
MEDIUMCVE-2026-25597 is a medium-severity (CVSS 5.3) CWE-208 vulnerability in prestashop/prestashop. O3 Security confirms whether CVE-2026-25597 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
PrestaShop has a time based enumeration in FO login form
Real-World Exposure
prestashop/prestashop🐘prestashop/prestashopReal-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. Prior to 8.2.4 and 9.0.3, there is a time-based user enumeration vulnerability in the user authentication functionality of PrestaShop. This vulnerability allows an attacker to determine whether a customer account exists in the system by measuring response times. This vulnerability is fixed in 8.2.4 and 9.0.3.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | prestashop/prestashop | ≥ 9.0.0-alpha.1&&< 9.0.3 | 9.0.3 |
| 🐘Packagist | prestashop/prestashop | all versions | 8.2.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for prestashop/prestashop. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update prestashop/prestashop to 9.0.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-25597 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 pinpoints whether CVE-2026-25597 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2026-25597. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-25597 in your dependencies?
O3 detects CVE-2026-25597 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.