CVE-2023-26041 Nextcloud Talk messages can still be seen on conversation after expiring when cron is misconfigured
Misconfigured cron jobs allow attackers to retrieve expired chat messages via the API, bypassing frontend visibility restrictions.
- 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-2023-26041?
CVE-2023-26041 is a low-severity vulnerability in nextcloud security-advisories, published on 27 Feb 2023. 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 Talk is a fully on-premises audio/video and chat communication service. When cron jobs were misconfigured and therefore messages are not expired, the API would still return them while they were then hidden by the frontend code. It is recommended that the Nextcloud Talk is upgraded to 15.0.3. There are no workaround available.
Which versions are affected by CVE-2023-26041?
It affects 1 product.
Products include Nextcloud Nextcloud Talk.
How do I fix CVE-2023-26041?
No fix has been published for CVE-2023-26041 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-26041 being exploited?
There is no known exploitation of CVE-2023-26041 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
Sources
Also known as GHSA-j53p-r755-v4jf.