What’s Vulnerable › Vulnerabilities
CVE-2026-40544: Stored XSS in SOPlanning
- Severity: medium (CVSS 5.1 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-01 · updated 2026-07-22
- Weakness: CWE-79
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.
Affected products
- SOPlanning: through 1.55
References
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