Vulnerability · Published Jan 10, 2023 · Assigned by GitHub_M

CVE-2023-22469Nextcloud Deck card vulnerable to data leak to unauthorized users via reference preview cache

Medium 5.8

In plain English

A medium-severity security flaw in security-advisories from nextcloud. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.7%top 46.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. When getting the reference preview for Deck cards the user has no access to, unauthorized user could eventually get the cached data of a user that has access. There are currently no known workarounds. It is recommended that the Nextcloud app Deck is upgraded to 1.8.2.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	< 1.8.2

Weakness: CWE-922 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8fjp-w9gp-j5hq x_refsource_CONFIRM
https://github.com/nextcloud/deck/pull/4196 x_refsource_MISC