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CVE-2026-33673

PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables

7.7 HighFix available

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
High
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.27%Up 0.2 points since Mar 27, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.7

PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

Record
CVE-2026-33673
CVSS 3.1
7.7 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2026-16441 7.7

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

Record
EUVD-2026-16441
CVSS 3.1
7.7 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-35pf-37c6-jxjv 7.6

PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables

Impact

Multiple stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO: an attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates.

Patches

Patched on 8.2.5 and 9.1.0

Workarounds

None

References

None

Record
GHSA-35pf-37c6-jxjv
CVSS 3.1
7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02
NVD 7.6

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

Record
CVE-2026-33673
CVSS 3.1
7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 7.6

PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

Record
CVE-2026-33673
CVSS 3.1
7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-04
OSVGHSA-35pf-37c6-jxjv 7.6

PrestaShop has multiple stored XSS vulnerabilities via unprotected Template variables

Impact

Multiple stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO: an attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates.

Patches

Patched on 8.2.5 and 9.1.0

Workarounds

None

References

None

Record
GHSA-35pf-37c6-jxjv
CVSS 3.1
7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
prestashop/prestashop
Packagist
 9.0.0-alpha.1 up to 9.1.0
9.1.0
prestashop/prestashop
Packagist
 before 8.2.5
8.2.5
prestashop/prestashop
Packagist
 9.0.0-alpha.1 up to 9.1.0, plus listed versions
9.0.09.0.0-beta.19.0.0-rc.19.0.19.0.29.0.39.1.0-beta.19.1.0-rc.1
9.1.0
prestashop/prestashop
Packagist
 before 8.2.5, plus listed versions
1.7.0.01.7.0.0-beta.1.01.7.0.0-beta.2.01.7.0.0-beta.3.01.7.0.0-beta.4.0
Show 45 moreShow less
1.7.0.0-rc.0.01.7.0.0-rc.1.01.7.0.0-rc.2.01.7.0.11.7.0.21.7.0.31.7.0.41.7.0.51.7.0.61.7.1.01.7.1.11.7.1.21.7.2.01.7.2.0-rc.1.01.7.2.11.7.2.21.7.2.31.7.2.41.7.2.51.7.3.01.7.3.11.7.3.21.7.3.31.7.3.41.7.4.01.7.4.0-beta.11.7.4.11.7.4.21.7.4.31.7.4.41.7.5.01.7.5.0-beta.11.7.5.0-rc.11.7.5.11.7.5.21.7.6.01.7.6.0-beta.11.7.6.0-rc.11.7.6.0-rc.21.7.6.11.7.6.21.7.6.31.7.6.41.7.6.51.7.6.6
8.2.5

History

History
RecordedChangedSources
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-33673 is a high vulnerability (CVSS 7.7) in Prestashop, published March 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 20th percentile. Fixed in prestashop/prestashop 9.1.0.

References

This page doesn't list everything

Left out here: 52 versions. The JSON record has them.

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