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CVE-2026-44212 — PrestaShop has a stored XSS executable in...

CRITICAL

PrestaShop has a stored XSS executable in customer service view

Published May 8, 2026Updated July 16, 2026Source: osv

Summary

### Impact This is a **stored Cross-site Scripting (XSS)** vulnerability in the PrestaShop back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form with a malicious email address. The payload is stored in the database and executed when a back-office employee opens the affected customer thread, enabling session hijacking and full back-office takeover. ### Patches Patched in PrestaShop 8.2.6 and 9.1.1. ### Workarounds None. ### Resources - Reported by Savio at Doyensec (`anthropic@doyensec.com`) in collaboration with Anthropic Research.

Advisory Timeline

  • First published May 8, 2026 (157 days ago).
  • Last revised July 16, 2026 — 69 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update prestashop/prestashop to 8.2.6 or later
composer require "prestashop/prestashop:^8.2.6"
Composer
Update prestashop/prestashop to 9.1.1 or later
composer require "prestashop/prestashop:^9.1.1"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
prestashop/prestashop
packagist
1.7.0.0, 1.7.0.0-beta.1.0, 1.7.0.0-beta.2.0, 1.7.0.0-beta.3.0 (+99 more)8.2.6
prestashop/prestashop
packagist
9.0.0, 9.0.1, 9.0.2, 9.0.3 (+3 more)9.1.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2026-44212?
PrestaShop has a stored XSS executable in customer service view This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.3/10).
How do I check if my project is affected by CVE-2026-44212?
CVE-2026-44212 affects prestashop/prestashop. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-44212 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.3

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-w9f3-qc75-qgx9

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