CVE-2025-11903Public exploitNetwork attack vector

Authenticated SQL injection via unchecked article identifier

Published Oct 17, 2025 · Updated Feb 24, 2026

SQL injection in ChanCMS 3.3.0 through 3.3.2 allows remote authenticated users to manipulate MySQL queries through the article update endpoint. The /cms/article/update update function fails to validate the cid body parameter before database use, enabling time-based blind injection. Authenticated access to the administrative interface and a valid token are required, and the demonstrated oracle exposes database query outcomes.

CVSS severity6.3
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in ChanCMS 3.3.0 through 3.3.2 allows remote authenticated users to manipulate MySQL queries through the article update endpoint. The /cms/article/update update function fails to validate the cid body parameter before database use, enabling time-based blind injection. Authenticated access to the administrative interface and a valid token are required, and the demonstrated oracle exposes database query outcomes.

The record

CVE
CVE-2025-11903
Published
Oct 17, 2025
Updated
Feb 24, 2026
Vendor
ChanCMS
Product
ChanCMS
Classifications
CWE-74, CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 2026Record 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=3.3.0
  2. Affected versionversion=3.3.1
  3. Affected versionversion=3.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ChanCMS · ChanCMSversion=3.3.0; version=3.3.1; version=3.3.2

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
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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