CVE-2023-24278Public exploitNetwork attack vector

Session hijacking via unescaped SVG query parameters

Published Mar 18, 2023 · Updated Feb 26, 2025

Reflected XSS in Squidex before 7.4.0 allows remote attackers to execute JavaScript in a victim's browser through a malicious link. SquidMiddleware inserts the text and background query parameters into the generated /squid.svg response without encoding them as text, permitting injected SVG markup. The endpoint requires no authentication, but a victim must open the crafted URL; execution exposes the CMS token in browser local storage and enables session hijacking.

CVSS severity6.1
Medium
EPSS probability2.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Squidex before 7.4.0 allows remote attackers to execute JavaScript in a victim's browser through a malicious link. SquidMiddleware inserts the text and background query parameters into the generated /squid.svg response without encoding them as text, permitting injected SVG markup. The endpoint requires no authentication, but a victim must open the crafted URL; execution exposes the CMS token in browser local storage and enables session hijacking.

The record

CVE
CVE-2023-24278
Published
Mar 18, 2023
Updated
Feb 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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