CVE-2022-21686

Name: CVE-2022-21686
Creator: NVD / NIST
Published: 2022-01-26T20:15:07.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.79%

Last modified Jun 17, 2026

CVE-2022-21686 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.79% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.79%

75.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Prestashop	Prestashop	>= 1.7.0.0, <= 1.7.8.3

References

https://github.com/PrestaShop/PrestaShop/commit/d02b469ec365822e6a9f017e57f588966248bf21Patch, Third Party Advisory
https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.8.3Release Notes, Third Party Advisory
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-mrq4-7ch7-2465Third Party Advisory
https://github.com/PrestaShop/PrestaShop/commit/d02b469ec365822e6a9f017e57f588966248bf21Patch, Third Party Advisory
https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.8.3Release Notes, Third Party Advisory
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-mrq4-7ch7-2465Third Party Advisory

Timeline

Published: Jan 26, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-21686?

How severe is CVE-2022-21686?

CVE-2022-21686 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.79% probability of exploitation in the next 30 days.

How do I fix CVE-2022-21686?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-21686?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST