How severe is CVE-2022-21686?

CVE-2022-21686 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-21686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21686?

CVE-2022-21686 affects Prestashop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21686?

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

When was CVE-2022-21686 published?

CVE-2022-21686 was published on 2022-01-26 and last updated on 2026-06-17.

CVE-2022-21686

CVE-2022-21686 is a critical-severity vulnerability in Prestashop with a CVSS 3.x base score of 9.0. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
CVSS v2: 7.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Prestashop
Published: 2022-01-26
Last modified: 2026-06-17

Description

PrestaShop is an Open Source e-commerce platform. Starting with version 1.7.0.0 and ending with version 1.7.8.3, an attacker is able to inject twig code inside the back office when using the legacy layout. The problem is fixed in version 1.7.8.3. There are no known workarounds.

Frequently asked questions

What is CVE-2022-21686?: PrestaShop is an Open Source e-commerce platform. Starting with version 1.7.0.0 and ending with version 1.7.8.3, an attacker is able to inject twig code inside the back office when using the legacy layout. The problem is fixed in version 1.7.8.3. There are no known workarounds.
How severe is CVE-2022-21686?: CVE-2022-21686 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-21686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21686?: CVE-2022-21686 affects Prestashop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-21686 published?: CVE-2022-21686 was published on 2022-01-26 and last updated on 2026-06-17.

References

Affected products (1)

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

More vulnerabilities in Prestashop

CVE-2008-5791 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in PrestaShop e-Commerce Solution before 1.1 Beta 2 (aka 1.1.0.1) have unknown…
CVE-2023-30839 — Critical (CVSS 9.9): PrestaShop is an Open Source e-commerce web application. Versions prior to 8.0.4 and 1.7.8.9 contain a SQL filtering…
CVE-2022-31181 — Critical (CVSS 9.8): PrestaShop is an Open Source e-commerce platform. In versions from 1.6.0.10 and before 1.7.8.7 PrestaShop is subject to…
CVE-2021-3110 — Critical (CVSS 9.8): The store system in PrestaShop 1.7.7.0 allows time-based boolean SQL injection via the module=productcomments…
CVE-2020-15160 — Critical (CVSS 9.8): PrestaShop from version 1.7.5.0 and before version 1.7.6.8 is vulnerable to a blind SQL Injection attack in the Catalog…
CVE-2013-6295 — Critical (CVSS 9.8): PrestaShop 1.5.5 vulnerable to privilege escalation via a Salesman account via upload module

All CVEs affecting Prestashop →

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →