November 14, 2026

CVE Watchtower

CVE-2026-94039vas3k TaxHacker Server-Side Request Forgery (SSRF)

NVD

Vulnerability Summary

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.
Severity Level
HIGH(7.3)
Published Date
Sep 20, 2026
Last Modified
Sep 21, 2026
Exploitation Status
Public exploit available
EPSS Score (30-Day)
0.50%Probability
Root Weakness (CWE)
CWE-918: Server-Side Request Forgery (SSRF) ↗
The web server receives a URL or similar request from an upstream component and retrieves its contents, but does not sufficiently ensure that the request is being sent to the expected destination.
CVSS v4.0 Base Metrics — Score 6.9 (MEDIUM)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)Low
Integrity (Vulnerable System)Low
Availability (Vulnerable System)Low
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 7.3)
CVSS v3.1 Base Metrics — Score 7.3 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • vas3k TaxHacker 0.8.0
  • vas3k TaxHacker 0.8.1
  • vas3k TaxHacker 0.8.2
  • vas3k TaxHacker 0.8.3
  • vas3k TaxHacker 0.8.4
  • vas3k TaxHacker 0.8.5
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Prioritize this fix. Exploit code is public, so attacks can follow quickly.

  1. Check whether you run vas3k TaxHacker and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.
  4. Review logs and exposed services for signs of earlier compromise.

Timeline

  • Sep 20, 2026Published
  • Sep 21, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

Get notified about new vas3k TaxHacker CVEsYou are reading CVE-2026-94039. Get an email when KEV listings, exploits or new CVEs match your stack.
Set up CVE alerts

More vas3k TaxHacker CVEs

External References

Data last checked: Nov 14, 2026 02:13 UTC