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CVE-2026-54596— ITFlow: Authenticated SQL Injection via recurring_invoice_frequency Parameter Enables Full Database Exfiltration

Quick assessment

Affected
itflow-org itflow
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ITFlow 是一款面向小型托管服务提供商的 IT 文档、工单和财务管理系统。在 26.07 版本之前，拥有至少一个客户发票访问权限的已认证技术员（或更高权限角色）可以通过 中处理的 参数注入 SQL。该处理程序虽然通过 对 进行了清理，但将其未加引号地插值到 函数中，从而允许 SQL 语法逃逸出区间表达式、添加额外的 INSERT 列、将子查询结果存储到 字段中，并通过 将这些结果暴露出来。已持久化的 可以在后续操作中再次执行：当使用“强制周期性”（Force Recurring）功能时，它会在随后的 UPDAT

CVSS 8.1 · High
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I. Basic Information for CVE-2026-54596

Vulnerability Information
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Vulnerability Title
ITFlow: Authenticated SQL Injection via recurring_invoice_frequency Parameter Enables Full Database Exfiltration
Source: CVE Program / CVE List V5
Vulnerability Description
ITFlow provides an IT documentation, ticketing and accounting system for small managed service providers. Prior to version 26.07, an authenticated Technician or higher with access to at least one client invoice can inject SQL through the frequency parameter handled by agent/post/recurring_invoice.php. The handler passes recurring_invoice_frequency through sanitizeInput but interpolates it unquoted into DATE_ADD, allowing SQL syntax to escape the interval expression, assign additional INSERT columns, store subquery results in recurring_invoice_note, and expose those results through agent/recurring_invoice.php. The persisted recurring_invoice_frequency can execute again when Force Recurring uses it in a later UPDATE, allowing another legitimate user to trigger the second-order injection. This can expose password hashes, SMTP credentials, user records, and database metadata, modify database fields, and enable administrative takeover after credential cracking. This issue is fixed in version 26.07.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
itflow-org itflow < 26.07 -

II. Public POCs for CVE-2026-54596

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III. Intelligence Information for CVE-2026-54596

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Patches & Fixes for CVE-2026-54596 (2)

Vendor Advisories for CVE-2026-54596 (1)

Vendor Pages for CVE-2026-54596 (1)

IV. Related Vulnerabilities

Same product: itflow
Same vendor: itflow-org
Same weakness: CWE-89

V. Comments for CVE-2026-54596

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