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Privilege escalation by backend users assigned to the default "Publisher" system role

Moderate
LukeTowers published GHSA-rfjc-xrmf-5vvw Nov 22, 2020

Package

composer october/backend (Composer)

Affected versions

>= 1.0.319, < 1.0.469, 1.1.0

Patched versions

1.0.470, 1.1.1

Description

Impact

Backend users with the default "Publisher" system role have access to create & manage users where they can choose which role the new user has. This means that a user with "Publisher" access has the ability to escalate their access to "Developer" access.

Patches

Issue has been patched in Build 470 (v1.0.470) & v1.1.1.

Workarounds

Apply 78a3729 to your installation manually if unable to upgrade to Build 470 or v1.1.1.

References

Reported by Hoan Hoang

For more information

If you have any questions or comments about this advisory:

Threat assessment:

Screen Shot 2020-10-10 at 1 37 25 PM

Severity

Moderate

CVE ID

CVE-2020-15248

Weaknesses

No CWEs