Vulnerability · Published May 30, 2023 · Assigned by GitHub_M

CVE-2023-33182Nextcloud Contacts photos only sanitized if mime type is all lower case

None 0.0

In plain English

A improper input validation in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)0.0None

Exploit odds (30 days)0.8%top 41.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. The unsanitized SVG is converted to a JavaScript blob (in memory data) that the Avatar can't render. Due to this constellation the missing sanitization does not seem to be exploitable. It is recommended that the Contacts app is upgraded to 5.0.3 or 4.2.4

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 4.1.0, < 4.2.4>= 5.0.0, < 5.0.3

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hxr6-cx85-gcjx x_refsource_CONFIRM
https://github.com/nextcloud/contacts/pull/3199 x_refsource_MISC
https://hackerone.com/reports/1789602 x_refsource_MISC