CVE-2026-44212Network attack vector

Back-office takeover via unescaped customer email

Published May 14, 2026 · Updated May 14, 2026

Stored XSS in PrestaShop before 8.2.6 and 9.0.0-alpha.1 through 9.1.0 allows remote attackers to hijack back-office sessions. The Customer Service view inserts an attacker-controlled customer email into an h3 element and hidden input without HTML escaping. Exploitation requires an unauthenticated public contact-form submission and a back-office employee to open the thread, after which script runs in the employee's browser and can take over the back office.

CVSS severity9.3
Critical
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in PrestaShop before 8.2.6 and 9.0.0-alpha.1 through 9.1.0 allows remote attackers to hijack back-office sessions. The Customer Service view inserts an attacker-controlled customer email into an h3 element and hidden input without HTML escaping. Exploitation requires an unauthenticated public contact-form submission and a back-office employee to open the thread, after which script runs in the employee's browser and can take over the back office.

The record

CVE
CVE-2026-44212
Published
May 14, 2026
Updated
May 14, 2026
Vendor
PrestaShop
Product
PrestaShop
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.2.6
  2. Affected versionversion=>= 9.0.0-alpha.1, < 9.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PrestaShop · PrestaShopversion=< 8.2.6; version=>= 9.0.0-alpha.1, < 9.1.1

Published CVSS scores

9.3PrestaShop GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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