CVE-2020-23630Public exploitNetwork attack vector

Database-data inference via unfiltered password cookie

Published Jan 11, 2021 · Updated Jul 9, 2026

Blind SQL injection in ZZCMS 201910 allows remote authenticated users to infer database data via a crafted PassWord cookie. In check.php, the UserName cookie passes through nostr(), but the PassWord cookie is concatenated directly into the zzcms_user lookup without filtering or parameterization. Valid enterprise-account credentials are required to reach user/daohang_company.php, and time-delayed query results provide the blind inference channel.

CVSS severity8.8
High
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SQL injection in ZZCMS 201910 allows remote authenticated users to infer database data via a crafted PassWord cookie. In check.php, the UserName cookie passes through nostr(), but the PassWord cookie is concatenated directly into the zzcms_user lookup without filtering or parameterization. Valid enterprise-account credentials are required to reach user/daohang_company.php, and time-delayed query results provide the blind inference channel.

The record

CVE
CVE-2020-23630
Published
Jan 11, 2021
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NVDAV: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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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