CVE-2023-46744Public exploitNetwork attack vector

Account takeover via insufficient SVG element filtering

Published Nov 7, 2023 · Updated Sep 4, 2024

Stored XSS in Squidex before 7.9.0 allows remote authenticated users to run JavaScript in other users' browsers through SVG assets. The IsValidSvg method blocks only script elements and attributes beginning with on, so an iframe with a javascript URI passes validation. Attackers need assets.create permission, and code runs when a registered user views the asset, enabling theft of access tokens and account takeover.

CVSS severity5.4
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Squidex before 7.9.0 allows remote authenticated users to run JavaScript in other users' browsers through SVG assets. The IsValidSvg method blocks only script elements and attributes beginning with on, so an iframe with a javascript URI passes validation. Attackers need assets.create permission, and code runs when a registered user views the asset, enabling theft of access tokens and account takeover.

The record

CVE
CVE-2023-46744
Published
Nov 7, 2023
Updated
Sep 4, 2024
Vendor
Squidex
Product
Squidex
Classifications
CWE-79, T1528
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.9.0
  2. Affected versionversion=< 7.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Squidex · Squidexversion=0 <7.9.0; version=< 7.9.0

Published CVSS scores

5.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NISTCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1528Steal Application Access Token

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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