CVE-2024-37316 Nextcloud Calendar's event create can create attachments that link to other websites
Authenticated users can create calendar events with malicious attachments that redirect participants to external websites upon clicking.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-37316?
CVE-2024-37316 is a medium-severity vulnerability in nextcloud security-advisories, published on 14 Jun 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Nextcloud Calendar is a calendar app for Nextcloud. Authenticated users could create an event with manipulated attachment data leading to a bad redirect for participants when clicked. It is recommended that the Nextcloud Calendar App is upgraded to 4.6.8 or 4.7.2.
Weakness: CWE-241
Which versions are affected by CVE-2024-37316?
It affects 1 product.
Products include Nextcloud Calendar.
How do I fix CVE-2024-37316?
No fix has been published for CVE-2024-37316 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-37316 being exploited?
There is no known exploitation of CVE-2024-37316 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2025-66550 Nextcloud Calendar attachments of local files are offered to downloaded
- CVE-2022-24838 Command Injection in Appointment Emails for Nextcloud Calendar
- CVE-2025-66511 Nextcloud Calendar app used predictable proposal participant tokens
- CVE-2018-3763 Cross-site scripting in Nextcloud Calendar application
- CVE-2026-45286 Nextcloud: Calendar app leaked user identifiers via attendee suggestion endpoint
Sources
Also known as GHSA-2r7q-vfmv-79qf.