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.
Published: 2026-06-01
Score: 5.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Mon, 01 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
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.
Title Stored XSS in SOPlanning
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-06-01T09:03:49.850Z

Reserved: 2026-04-14T09:44:27.613Z

Link: CVE-2026-40544

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-01T09:16:17.163

Modified: 2026-06-01T09:16:17.163

Link: CVE-2026-40544

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses