CVE-2023-23286Public exploitNetwork attack vector

NT SYSTEM code execution via stored log XSS

Published Feb 10, 2023 · Updated Mar 24, 2025

Stored XSS in Provide Server 14.4 allows remote attackers to execute script in an administrator's browser through a crafted login username. The login handler stores the username in the server log without neutralizing HTML or script content before the log viewer renders it. No authentication is required to plant the payload, but an administrator must view the log; the published chain then abuses an exposed CSRF token to create an NT SYSTEM task.

CVSS severity6.1
Medium
EPSS probability2.63%
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 Provide Server 14.4 allows remote attackers to execute script in an administrator's browser through a crafted login username. The login handler stores the username in the server log without neutralizing HTML or script content before the log viewer renders it. No authentication is required to plant the payload, but an administrator must view the log; the published chain then abuses an exposed CSRF token to create an NT SYSTEM task.

The record

CVE
CVE-2023-23286
Published
Feb 10, 2023
Updated
Mar 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 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

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS: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')
T1190Exploit Public-Facing Application

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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