How severe is CVE-2026-33673?

CVE-2026-33673 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-33673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33673?

CVE-2026-33673 affects Prestashop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33673?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33673 have an EU (EUVD) identifier?

Yes. CVE-2026-33673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16441.

When was CVE-2026-33673 published?

CVE-2026-33673 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-33673

CVE-2026-33673 is a high-severity vulnerability in Prestashop with a CVSS 3.x base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16441
Weakness: CWE-79
Affected product: Prestashop
Published: 2026-03-26
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-33673?: 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.
How severe is CVE-2026-33673?: CVE-2026-33673 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-33673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33673?: CVE-2026-33673 affects Prestashop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33673?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33673 have an EU (EUVD) identifier?: Yes. CVE-2026-33673 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16441.
When was CVE-2026-33673 published?: CVE-2026-33673 was published on 2026-03-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:prestashop:prestashop:*:*:*:*:*:*:*:*

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