CVE-2021-22913 Information disclosure in Nextcloud Deck
Attackers can access sharee information via the lookup server during searches, exposing user data in Nextcloud Deck.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-22913?
CVE-2021-22913 is a medium-severity vulnerability in Nextcloud Deck, published on 11 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Nextcloud Deck before 1.2.7, 1.4.1 suffers from an information disclosure vulnerability when searches for sharees utilize the lookup server by default instead of only the local Nextcloud server unless a global search has been explicitly chosen by the user.
Weakness: CWE-200
Which versions are affected by CVE-2021-22913?
It affects 1 product.
Products include Nextcloud Deck.
How do I fix CVE-2021-22913?
No fix has been published for CVE-2021-22913 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-22913 being exploited?
There is no known exploitation of CVE-2021-22913 in the wild and no public exploit code.
Other vulnerabilities in Nextcloud Deck
- CVE-2021-39225 Missing permission check on Deck API
- CVE-2020-8182 Missing authorization in Nextcloud Deck
- CVE-2021-37631 Circle can be accessed by non-Circle members in Nextcloud Deck
- CVE-2023-22469 Nextcloud Deck card vulnerable to data leak to unauthorized users via reference preview cache
- CVE-2025-66557 Nextcloud Deck app allowed user with "Can share" permission to modify permissions of other non-owners
Sources
Also known as GHSA-h8f6-wg82-6p7r.