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CVE-2026-94039— vas3k TaxHacker Invoice PDF Renderer actions.ts generateInvoicePDF server-side request forgery

Quick assessment

Affected
vas3k TaxHacker
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.

在 vas3k TaxHacker 0.8.5 及更早版本中发现了一个漏洞。受影响的是位于 /apps/invoices/actions.ts 文件中的 generateInvoicePDF 函数，该函数属于“发票 PDF 渲染器”组件。通过对参数 businessLogo 进行操纵，可导致服务器端请求伪造（SSRF）漏洞的发生。该攻击可远程实施。利用该漏洞的代码或方法现已公开，可能被利用。项目方已提前通过问题报告获知该问题，但至今未作出回应。

CVSS 7.3 · High EPSS 0.29% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
vas3k TaxHacker 0.8.0 affected
0.8.1 affected
0.8.2 affected
0.8.3 affected
0.8.4 affected
0.8.5 affected
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I. Basic Information for CVE-2026-94039

Vulnerability Information
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Vulnerability Title
vas3k TaxHacker Invoice PDF Renderer actions.ts generateInvoicePDF server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in vas3k TaxHacker up to 0.8.5. Affected is the function generateInvoicePDF of the file /apps/invoices/actions.ts of the component Invoice PDF Renderer. Performing a manipulation of the argument businessLogo results in server-side request forgery. The attack is possible to be carried out remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vas3k TaxHacker 0.8.0 cpe:2.3:a:vas3k:taxhacker:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-94039

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III. Intelligence Information for CVE-2026-94039

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Security Blog Posts for CVE-2026-94039 (1)

Other References for CVE-2026-94039 (3)

IV. Related Vulnerabilities

Same product: TaxHacker
Same vendor: vas3k
Same weakness: CWE-918

V. Comments for CVE-2026-94039

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