TI-2023-11845 Aliases CVE-2023-26961 GHSA-w43g-7q27-j39g

Alteryx Server 2022.1.1.42590 does not employ file type verification for uploaded files.

MEDIUM 55CWE-79Published 2023-08-08 · Updated 2026-07-09

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Alteryx Server 2022.1.1.42590 does not employ file type verification for uploaded files. This vulnerability allows attackers to upload arbitrary files (e.g., JavaScript content for stored XSS) via the type field in a JSON document within a PUT /gallery/api/media request.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0048 41st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:alteryx:alteryx_server:2022.1.1.42590:::::::*	2022.1.1.42590	Vulnerable	Alteryx

cpe:2.3:a:alteryx:alteryx_server:2022.1.1.42590:*:*:*:*:*:*:* Versions 2022.1.1.42590 Vulnerable ·Alteryx

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-26961
2026-10-03 Alias added: GHSA-w43g-7q27-j39g

References

Exploit 1

https://gist.github.com/DylanGrl/4269ae834c5d0ec77c9b928ad35d3be3

TI-2025-20763 Insecure Permissions vulnerability in the Local Storage in Alteryx Server 2023.1.1.460… CVSS 3.1HIGH 8.8
TI-2025-20762 An issue in Alteryx Server v.2023.1.1.460 allows HTML injection via a crafted script to the pages component. CVSS 3.1HIGH 8.0
TI-2025-20764 Cross-site scripting (XSS) vulnerability in Alteryx Server 2023.1.1.460 allows remote… CVSS 3.1MEDIUM 6.1
TI-2025-39271 When processing API requests, the Alteryx server 2022.1.1.42654 and 2024.1 used MongoDB… CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences