CVE-2024-37316
CVE-2024-37316 is a medium-severity vulnerability in Nextcloud Calendar with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-241.
Key facts
- Severity: Medium (CVSS 3.x base score 4.6)
- EPSS exploit prediction: 0% (28th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-36574
- Weakness: CWE-241
- Affected product: Nextcloud Calendar
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2024-37316?
- 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.
- How severe is CVE-2024-37316?
- CVE-2024-37316 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2024-37316 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-37316?
- CVE-2024-37316 affects Nextcloud Calendar. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-37316?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-37316 have an EU (EUVD) identifier?
- Yes. CVE-2024-37316 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36574.
- When was CVE-2024-37316 published?
- CVE-2024-37316 was published on 2024-06-14 and last updated on 2026-06-17.
References
- https://github.com/nextcloud/calendar/pull/5966
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2r7q-vfmv-79qf
- https://hackerone.com/reports/2457588
Affected products (1)
- cpe:2.3:a:nextcloud:calendar:*:*:*:*:*:*:*:*
More vulnerabilities in Nextcloud Calendar
- CVE-2025-66550 — Medium (CVSS 5.7): Nextcloud Calendar is a calendar app for Nextcloud. Prior to 4.7.17 and 5.2.4, when a malicious user creates a calendar…
- CVE-2022-24838 — Medium (CVSS 5.3): Nextcloud Calendar is a calendar application for the nextcloud framework. SMTP Command Injection in Appointment Emails…
- CVE-2025-66511 — Medium (CVSS 4.8): Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for…
- CVE-2018-3763 — Medium (CVSS 4.8): In Nextcloud Calendar before 1.5.8 and 1.6.1, a missing sanitization of search results for an autocomplete field could…
- CVE-2026-45286 — Medium (CVSS 4.3): Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before…
- CVE-2023-45150 — Medium (CVSS 4.3): Nextcloud calendar is a calendar app for the Nextcloud server platform. Due to missing precondition checks the server…
All CVEs affecting Nextcloud Calendar →
Other CWE-241 vulnerabilities
- CVE-2021-40116 — High (CVSS 8.6): Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote…
- CVE-2022-39064 — High (CVSS 8.1): An attacker sending a single malformed IEEE 802.15.4 (Zigbee) frame makes the TRÅDFRI bulb blink, and if they replay…
- CVE-2025-63548 — High (CVSS 7.5): An issue in Eprosima Micro-XREC-DDS Agent v.3.0.1 allows a remote attacker to cause a denial of service via a packet…
- CVE-2025-2268 — High (CVSS 7.5): The HP LaserJet MFP M232-M237 Printer Series may be vulnerable to a denial of service attack when a specially crafted…
- CVE-2022-3029 — High (CVSS 7.5): In NLnet Labs Routinator 0.9.0 up to and including 0.11.2, due to a mistake in error handling, data in RRDP snapshot…
- CVE-2022-24668 — High (CVSS 7.5): A program using swift-nio-http2 is vulnerable to a denial of service attack caused by a network peer sending ALTSVC or…