CVE-2026-13529Public exploitNetwork attack vector

Database disclosure via unparameterized installer query

Published Jun 29, 2026 · Updated Jun 29, 2026

SQL injection in the YzmCMS installer in versions 7.0 through 7.5 allows remote attackers to read database data through siteurl. The installer reads siteurl from POST, trims it, concatenates it into an UPDATE statement, and executes it with PDO::exec without parameter binding. Exploitation requires access to the installation workflow, such as an absent cache/install.lock file, and error-based payloads disclose database contents.

CVSS severity5.6
Medium
EPSS probability0.37%
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 the YzmCMS installer in versions 7.0 through 7.5 allows remote attackers to read database data through siteurl. The installer reads siteurl from POST, trims it, concatenates it into an UPDATE statement, and executes it with PDO::exec without parameter binding. Exploitation requires access to the installation workflow, such as an absent cache/install.lock file, and error-based payloads disclose database contents.

The record

CVE
CVE-2026-13529
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
Yuan Zhimeng Studio
Product
YzmCMS
Classifications
CWE-89, CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=7.0
  2. Affected versionversion=7.1
  3. Affected versionversion=7.2
  4. Affected versionversion=7.3
  5. Affected versionversion=7.4
  6. Affected versionversion=7.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yuan Zhimeng Studio · YzmCMSversion=7.0; version=7.1; version=7.2; version=7.3; version=7.4; version=7.5

Published CVSS scores

5.1VulDBAV:N/AC:H/Au:N/C:P/I:P/A:P
2.9VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.6VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

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