Public vulnerability disclosure

CVE-2026-114519

Missing authorization in the Prospero Flow CRM user API allows a basic role user to read and delete other accounts

publishedCWE-862

Missing Authorization (CWE-862) in the user API of Roskus Prospero Flow CRM from 2.0.0 before 5.26.0 allows a user with a basic role to read the accounts of other users of its own company, including accounts with higher privileges, and, in versions from 3.5.0, to delete them, because the routes GET /api/user/{id} and DELETE /api/user/{id} in routes/api.php carry only the auth:api middleware, which checks that a JSON Web Token is valid and nothing more, and neither UserReadController::read() nor UserDeleteController::delete() checks a permission, a policy or a role before acting. Object access is scoped by company: the read path limits the query to the company of the authenticated user, and the delete path compares the company of the target account with the company of the authenticated user. The delete path skips that comparison when the company of the authenticated user is Company::DEFAULT_COMPANY, so a user with a basic role in that company can delete any account of any company of the installation. Deleting an account removes the data held on it, and the last administrative account of a company can be deleted. This gives the attacker the personal data held on the other accounts, including email address, telephone number, postal address and IBAN, and the ability to delete accounts it has no permission to administer.

Technical severity8.6 highCVSS 4.0 · CNA: Secur0
Published2026-10-22Source updated 2026-11-02
Collected2026-11-022 attributed sources

Fixes and workarounds

Fix

Upgrade to Roskus Prospero Flow CRM 5.26.0 or later.

Source: CNA: Secur0

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Prospero Flow CRM
Roskus
≥ 2.0.0; < 5.26.0 (affected, semver)
Other versions: unaffected
CNA: Secur0

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 8.6
high
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NCNA: Secur0

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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