PT-2026-39239 · Unknown · Prestashop

Savio · Published 2026-05-08 · Updated 2026-05-18 · CVE-2026-44212

Positive Technologies (AI Summary)

CVSS v3.1

9.3

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions PrestaShop versions prior to 8.2.6 PrestaShop versions prior to 9.1.1

Description A stored Cross-site Scripting (XSS) issue exists in the back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form using a malicious email address. This payload is stored in the database and executes when a back-office employee opens the affected customer thread, which can lead to session hijacking and full back-office takeover.

Recommendations Update to version 8.2.6. Update to version 9.1.1.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-PRESTASHOP-2026-44212

CVE-2026-44212

GHSA-W9F3-QC75-QGX9

Affected Products

Prestashop

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-44212 · Security Note
• https://osv.dev/vulnerability/GHSA-w9f3-qc75-qgx9 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-prestashop-2026-44212 · Vendor Advisory
• https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-w9f3-qc75-qgx9 · Note
• https://github.com/PrestaShop/PrestaShop · Note
• https://twitter.com/the_yellow_fall/status/2054023001797165404 · Twitter Post
• https://twitter.com/TechTranslators/status/2052858876358189183 · Twitter Post
• https://t.me/CVEtracker/53837 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2055095898670018809 · Twitter Post
• https://reddit.com/r/pwnhub/comments/1tdyb1z/critical_stored_xss_flaw_in_prestashop_allows · Reddit Post
• https://twitter.com/CVEnew/status/2055074224520282510 · Twitter Post