CVE-2023-49575Network attack vector

Stored XSS via unsanitized SMTP settings

Published May 24, 2024 · Updated May 21, 2025

Stored XSS in DiskPulse, VX Search, and SyncBreeze Enterprise allows remote attackers to execute JavaScript in a user's browser. The /setup_smtp endpoint stores smtp_server, smtp_user, smtp_password, and smtp_email_address values without neutralizing script content. Exploitation requires a user to load the affected page; the affected releases are DiskPulse and SyncBreeze 10.4.18 and VX Search 10.2.14.

CVSS severity7.1
High
EPSS probability0.25%
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 DiskPulse, VX Search, and SyncBreeze Enterprise allows remote attackers to execute JavaScript in a user's browser. The /setup_smtp endpoint stores smtp_server, smtp_user, smtp_password, and smtp_email_address values without neutralizing script content. Exploitation requires a user to load the affected page; the affected releases are DiskPulse and SyncBreeze 10.4.18 and VX Search 10.2.14.

The record

CVE
CVE-2023-49575
Published
May 24, 2024
Updated
May 21, 2025
Vendor
Flexense Ltd.
Product
DiskPulse Enterprise
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2024CVE publishedPublication date reported by the CVE source.
  2. May 21, 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?

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

  1. Affected versionversion=10.4.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Flexense Ltd. · DiskPulse Enterpriseversion=10.4.18
Flexense Ltd. · VX Search Enterpriseversion=10.2.14
Flexense Ltd. · SyncBreeze Enterprise Serverversion=10.4.18

Published CVSS scores

7.1INCIBECVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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