CVE-2026-59234 (GCVE-0-2026-59234)
Vulnerability from cvelistv5 – Published: 2026-07-03 12:47 – Updated: 2026-07-06 15:57 X_Open Source
VLAI
EPSS
VEX
Title
Authorization Bypass Through User-Controlled Key in Prospero Flow CRM calendar event deletion
Summary
Authorization Bypass Through User-Controlled Key (CWE-639) in CalendarDeleteEventController (app/Http/Controllers/Calendar/CalendarDeleteEventController.php), exposed at GET /calendar/event/delete/{id}, in Prospero Flow CRM before 5.5.3 allows a remote, authenticated attacker to delete arbitrary calendar events belonging to other users by manipulating the {id} path parameter, because the delete handler resolves the record with Calendar::find($id)->delete() and performs no ownership check (no user_id/company_id scoping) before deletion. This results in unauthorized destruction of other users' calendar events across the platform.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 15:57 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/Roskus/prospero-flow-crm/commi… | patch |
| https://github.com/Roskus/prospero-flow-crm/relea… | release-notes |
| https://secur0.com/en/cna/cve-list/cve-2026-59234… | related |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Roskus | Prospero Flow CRM |
Affected:
1.0.0 , < 5.5.3
(semver)
cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:* |
Date Public
2026-07-02 22:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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