# CVE-2026-40549: SOPlanning CSRF in groupe_save endpoints

Source: https://junglewise.ai/threats/cve-2026-40549-soplanning-csrf-in-groupe-save-endpoints  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-01. Updated: 2026-06-01  
License: CC BY 4.0 with a link back

CVE-2026-40549 · Severity: info · CVSS 5.1 · Published 2026-06-01

SOPlanning, an online project management and team scheduling tool, is vulnerable to a security flaw that could allow an attacker to perform unauthorized actions. By tricking an authenticated user into visiting a malicious website, an attacker can silently create, modify, or delete group data within the application. This could lead to unauthorized changes in project organization or loss of administrative group configurations.

Technologies: [SOPlanning](https://junglewise.ai/threats/technologies/soplanning). Vendors: [SOPlanning](https://junglewise.ai/threats/vendors/soplanning).

## Quick answers

**Is CVE-2026-40549 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40549 being exploited in the wild.

**How severe is CVE-2026-40549?** Informational severity, with a CVSS score of 5.1, published 1 June 2026.

**Which products and versions are affected?** SOPlanning All through 1.55.

**Is there a fix for CVE-2026-40549?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-40549 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-40549?** Check whether you run SOPlanning at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A Cross-Site Request Forgery (CSRF) vulnerability exists in SOPlanning versions up to and including 1.55. The vulnerability is located within the 'groupe_save' endpoints responsible for creating, modifying, and deleting groups. Because these endpoints do not implement sufficient CSRF protections (such as anti-forgery tokens), an attacker can craft a malicious webpage that triggers forged GET or POST requests to the application. If an authenticated user with appropriate permissions visits the attacker's site, the browser will automatically execute these requests in the context of the user's session, allowing the attacker to manipulate group data.

## Affected products

- SOPlanning SOPlanning All through 1.55

## Timeline

- 2026-06-01: advisory: Advisory published by CERT Polska

## References

- [https://cert.pl/en/posts/2026/06/CVE-2026-40543](https://cert.pl/en/posts/2026/06/CVE-2026-40543)
- [https://www.soplanning.org/en/](https://www.soplanning.org/en/)

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- [SOPlanning Path Traversal in backup endpoints](https://junglewise.ai/threats/cve-2026-40547-soplanning-path-traversal-in-backup-endpoints)
- [SOPlanning SQL injection in multiple endpoints](https://junglewise.ai/threats/cve-2026-40546-soplanning-sql-injection-in-multiple-endpoints)
- [SOPlanning Reflected XSS in taches parameter](https://junglewise.ai/threats/cve-2026-40545-soplanning-reflected-xss-in-taches-parameter)