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Event create can create attachments that link to other websites

Moderate
nickvergessen published GHSA-2r7q-vfmv-79qf Jun 14, 2024

Package

Calendar (Nextcloud)

Affected versions

>= 4.3.0

Patched versions

4.6.8, 4.7.2

Description

Impact

Authenticated users could create an event with manipulated attachment data leading to a bad redirect for participants when clicked.

Patches

It is recommended that the Nextcloud Calendar App is upgraded to 4.6.8 or 4.7.2

Workarounds

  • Disable the calendar app

References

For more information

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Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVE ID

CVE-2024-37316

Weaknesses

Credits