CVE-2025-12868Network attack vector

Administrator access via client-side authentication bypass

Published Nov 10, 2025 · Updated Nov 10, 2025

Client-side authentication in CyberTutor New Site Server version 0 allows unauthenticated remote attackers to gain website administrator privileges. The frontend performs the administrator authentication decision in attacker-modifiable client-side code rather than enforcing it on the server. No account or user interaction is required; successful exploitation grants administrative control of the website, while deeper code-level details are not public.

CVSS severity9.3
Critical
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Client-side authentication in CyberTutor New Site Server version 0 allows unauthenticated remote attackers to gain website administrator privileges. The frontend performs the administrator authentication decision in attacker-modifiable client-side code rather than enforcing it on the server. No account or user interaction is required; successful exploitation grants administrative control of the website, while deeper code-level details are not public.

The record

CVE
CVE-2025-12868
Published
Nov 10, 2025
Updated
Nov 10, 2025
Vendor
CyberTutor
Product
New Site Server
Classifications
CWE-603, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 10, 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=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CyberTutor · New Site Serverversion=0

Published CVSS scores

9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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-603Use of Client-Side Authentication
T1190Exploit Public-Facing Application

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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