What is CVE-2023-45660?

CVE-2023-45660 is a vulnerability in Nextcloud Mail, an email app for the Nextcloud home server platform, that allows an attacker to abuse the proxy endpoint to perform a denial of service attack on a third-party server.

How does CVE-2023-45660 affect Nextcloud Mail?

CVE-2023-45660 affects Nextcloud Mail by allowing an attacker to exploit a missing check of origin, target, and cookies to perform a denial of service attack.

What is the severity of CVE-2023-45660?

CVE-2023-45660 has a severity level of medium, with a CVSS score of 4.3.

How can I fix CVE-2023-45660 in Nextcloud Mail?

To fix CVE-2023-45660 in Nextcloud Mail, it is recommended to upgrade to version 2.2.8 or 3.3.0.

Where can I find more information about CVE-2023-45660?

You can find more information about CVE-2023-45660 on the following references: [GitHub Pull Request](https://github.com/nextcloud/mail/pull/8459), [Nextcloud Security Advisories](https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37), [HackerOne report](https://hackerone.com/reports/1895874).

Vulnerability/
CVE-2023-45660

medium

4.3

CWE

918

16/10/2023

13/9/2024

CVE-2023-45660: Require strict cookies for image proxy requests in Nextcloud Mail

First published: Mon Oct 16 2023(Updated: )

Nextcloud mail is an email app for the Nextcloud home server platform. In affected versions a missing check of origin, target and cookies allows for an attacker to abuse the proxy endpoint to denial of service a third server. It is recommended that the Nextcloud Mail is upgraded to 2.2.8 or 3.3.0. There are no known workarounds for this vulnerability.

Credit: security-advisories@github.com security-advisories@github.com

Affected Software	Affected Version	How to fix
Nextcloud mail	>=2.2.0<2.2.8
Nextcloud mail	>=3.0.0<3.3.0

Remedy

https://github.com/nextcloud/mail/pull/8459

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is CVE-2023-45660?
CVE-2023-45660 is a vulnerability in Nextcloud Mail, an email app for the Nextcloud home server platform, that allows an attacker to abuse the proxy endpoint to perform a denial of service attack on a third-party server.
How does CVE-2023-45660 affect Nextcloud Mail?
CVE-2023-45660 affects Nextcloud Mail by allowing an attacker to exploit a missing check of origin, target, and cookies to perform a denial of service attack.
What is the severity of CVE-2023-45660?
CVE-2023-45660 has a severity level of medium, with a CVSS score of 4.3.
How can I fix CVE-2023-45660 in Nextcloud Mail?
To fix CVE-2023-45660 in Nextcloud Mail, it is recommended to upgrade to version 2.2.8 or 3.3.0.
Where can I find more information about CVE-2023-45660?
You can find more information about CVE-2023-45660 on the following references: [GitHub Pull Request](https://github.com/nextcloud/mail/pull/8459), [Nextcloud Security Advisories](https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37), [HackerOne report](https://hackerone.com/reports/1895874).

collector/nvd-api
collector/nvd-index
agent/author
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/remedy
agent/severity
agent/weakness
agent/last-modified-date
agent/references
agent/title
agent/description
agent/first-publish-date
agent/tags
agent/event
vendor/nextcloud
canonical/nextcloud mail
version/nextcloud mail/2.2.0
version/nextcloud mail/3.0.0

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.