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Vulnerability record · CVE-2023-46857 · published 7 December 2023

CVE-2023-46857: Squidex.io squidex cross-site scripting vulnerability

SSquidex.Io · Squidex

Squidex before 7.9.0 allows XSS via an SVG document to the Upload Assets feature. This occurs because there is an incomplete blacklist in the SVG inspection, allowing JavaScript in the SRC attribute of an IFRAME element. An authenticated attack with assets.create permission is required for exploitation.

5.4 CVSS 3.1 Medium EPSS 0.57% · top 55.1% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.57%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Squidex before 7.9.0 allows XSS via an SVG document to the Upload Assets feature. This occurs because there is an incomplete blacklist in the SVG inspection, allowing JavaScript in the SRC attribute of an IFRAME element. An authenticated attack with assets.create permission is required for exploitation.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2023/11/08/4 Mailing List
https://census-labs.com/news/2023/11/08/weak-svg-asset-filtering-mechanism-in-squidex-cms/ Exploit
https://support.squidex.io/c/news/9 Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/11/08/4 Mailing List
https://census-labs.com/news/2023/11/08/weak-svg-asset-filtering-mechanism-in-squidex-cms/ Exploit
https://support.squidex.io/c/news/9 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-46857), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.