CVE-2023-46252

Session-context script execution via unverified postMessage origin

Published Nov 7, 2023 · Updated Sep 4, 2024

Cross-site scripting in Squidex before 7.9.0 allows remote attackers to execute JavaScript in an authenticated user's session. The editor-sdk.js listener accepts messages from any origin and passes valueChanged data through SquidexFormField to editor.render. Exploitation requires an authenticated user to visit an attacker-controlled page that frames the public editor sample; code runs in that user's Squidex context.

CVSS severity6.8
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Squidex before 7.9.0 allows remote attackers to execute JavaScript in an authenticated user's session. The editor-sdk.js listener accepts messages from any origin and passes valueChanged data through SquidexFormField to editor.render. Exploitation requires an authenticated user to visit an attacker-controlled page that frames the public editor sample; code runs in that user's Squidex context.

The record

CVE
CVE-2023-46252
Published
Nov 7, 2023
Updated
Sep 4, 2024
Vendor
Squidex
Product
Squidex
Classifications
CWE-20, CWE-79, CWE-940, T1189
Attack vector
adjacent
Privileges
unauthenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 7.9.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Squidex · Squidexversion=< 7.9.0

Published CVSS scores

6.1NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.8GitHub, Inc.CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-940Improper Verification of Source of a Communication Channel
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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