CVE-2026-15281Network attack vectorHinoki check available

Subscriber-level database disclosure via stored SQL injection

Published Aug 5, 2026 · Updated Aug 5, 2026

Second-order SQL injection in User Access Manager 2.3.12 and earlier allows remote authenticated users to read WordPress database data. The saveAjaxAttachmentData() function stores an insufficiently validated objectId from the AJAX id parameter; addQueryExcludedPostFilter() later uses it as an array key and implodes it into an unparameterized SQL NOT IN() clause. Subscriber-level access to wp_ajax_save-attachment-compat is sufficient, and the reported consequence is database confidentiality loss without integrity or availability impact.

CVSS severity6.5
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Second-order SQL injection in User Access Manager 2.3.12 and earlier allows remote authenticated users to read WordPress database data. The saveAjaxAttachmentData() function stores an insufficiently validated objectId from the AJAX id parameter; addQueryExcludedPostFilter() later uses it as an array key and implodes it into an unparameterized SQL NOT IN() clause. Subscriber-level access to wp_ajax_save-attachment-compat is sufficient, and the reported consequence is database confidentiality loss without integrity or availability impact.

The record

CVE
CVE-2026-15281
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
Alexander Schneider
Product
User Access Manager
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=0 <=2.3.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Alexander Schneider · User Access Managerversion=0 <=2.3.12

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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