Vulnerability · Published Feb 13, 2023 · Assigned by GitHub_M

CVE-2023-25160IDOR Vulnerability in Nextcloud Mail

Medium 4.1

In plain English

A medium-severity authorization bypass via user-controlled key 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 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)4.1Medium

Exploit odds (30 days)0.5%top 60.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nextcloud Mail is an email app for the Nextcloud home server platform. Prior to versions 2.2.1, 1.14.5, 1.12.9, and 1.11.8, an attacker can access the mail box by ID getting the subjects and the first characters of the emails. Users should upgrade to Mail 2.2.1 for Nextcloud 25, Mail 1.14.5 for Nextcloud 22-24, Mail 1.12.9 for Nextcloud 21, or Mail 1.11.8 for Nextcloud 20 to receive a patch. No known workarounds are available.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	< 1.11.8>= 1.12.0, < 1.12.9>= 1.13.0, < 1.14.5>= 2.0.0, < 2.2.1

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m45f-r5gh-h6cx x_refsource_CONFIRM
https://github.com/nextcloud/mail/pull/7740 x_refsource_MISC
https://hackerone.com/reports/1784681 x_refsource_MISC