CVE-2026-1748Network attack vector

Subscriber data exposure via unchecked AJAX handlers

Published Feb 11, 2026 · Updated Feb 11, 2026

Missing authorization in Invoct 1.6 and earlier allows remote authenticated users to read invoice clients, items, users, and email addresses. Four WordPress AJAX handlers in KirilKirkovWpInvoices.php return invoice-client, invoice-item, and WordPress user records without checking the caller's capabilities. Subscriber-level access is sufficient; the disclosed WordPress user records include email addresses, while no data modification or service interruption is reported.

CVSS severity4.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Invoct 1.6 and earlier allows remote authenticated users to read invoice clients, items, users, and email addresses. Four WordPress AJAX handlers in KirilKirkovWpInvoices.php return invoice-client, invoice-item, and WordPress user records without checking the caller's capabilities. Subscriber-level access is sufficient; the disclosed WordPress user records include email addresses, while no data modification or service interruption is reported.

The record

CVE
CVE-2026-1748
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Kiril Kirkov
Product
Invoct – PDF Invoices & Billing for WooCommerce
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 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=* <=1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kiril Kirkov · Invoct – PDF Invoices & Billing for WooCommerceversion=* <=1.6

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

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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