What is GHSA-hgm3-4mgq-cfx8?

GHSA-hgm3-4mgq-cfx8 is a security advisory published by GitHub Security Advisories with Medium severity. SOPlanning is vulnerable to Stored Cross-Site Scripting (XSS) via /process/upload_backup endpoint...

Which CVE IDs does GHSA-hgm3-4mgq-cfx8 cover?

GHSA-hgm3-4mgq-cfx8 covers the following CVE IDs: CVE-2026-40544. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-hgm3-4mgq-cfx8Medium

SOPlanning is vulnerable to Stored Cross-Site Scripting (XSS) via /process/upload_backup endpoint...

Vendor

GitHub Security Advisories

Published

June 1, 2026

Last Modified

June 1, 2026

🔗 CVE IDs covered (1)

CVE-2026-40544 →

📋 Description

SOPlanning is vulnerable to Stored Cross-Site Scripting (XSS) via /process/upload_backup endpoint. An authenticated attacker with access to the backup functionality can upload a crafted ZIP archive containing a malicious user.csv file with embedded JavaScript. The injected code is executed in the victim’s browser when a user clicks the Edit button for the malicious backup.

This issue affects SOPlanning version 1.55 and below.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-40544
https://cert.pl/en/posts/2026/06/CVE-2026-40543
https://www.soplanning.org/en
https://github.com/advisories/GHSA-hgm3-4mgq-cfx8