CVE-2021-3841: sylius XSS — Fix

Description

sylius/sylius versions prior to 1.9.10, 1.10.11, and 1.11.2 are vulnerable to stored cross-site scripting (XSS) through SVG files. This vulnerability allows attackers to inject malicious scripts that can be executed in the context of the user's browser.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
sylius	sylius	< 1.9.10
sylius	sylius	1.10.0 — 1.10.11
sylius	sylius	1.11.0 — 1.11.2

References

Advisories & Patches

https://github.com/sylius/sylius/commit/3da169e0c23e752974d74223cc536c29a2a82edc

Other References

https://huntr.com/bounties/1625506791178-Sylius/Sylius

Frequently Asked Questions

What is CVE-2021-3841? +

sylius/sylius versions prior to 1.9.10, 1.10.11, and 1.11.2 are vulnerable to stored cross-site scripting (XSS) through SVG files. This vulnerability allows attackers to inject malicious scripts that can be executed in the context of the user's browser. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2021-3841? +

CVE-2021-3841 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-3841? +

CVE-2021-3841 affects products from sylius, specifically: sylius. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-3841? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2021-3841