CVEvulnerability

CVE-2022-31014

3.5 LOW Published 2022-07-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-07-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 3.1 ([email protected])
3.5 LOW — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CVSS 2.0 ([email protected])
3.5 LOW — AV:N/AC:M/Au:S/C:N/I:P/A:N
Weaknesses
CWE-74, CWE-93

Description

Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the attacker can then hijack an already-authenticated SMTP session and run arbitrary SMTP commands as the email user, such as sending emails to other users, changing the FROM user, and so on. As before, this depends on the configuration of the server itself, but newlines should be sanitized to mitigate such arbitrary SMTP command injection. It is recommended that the Nextcloud Server is upgraded to 22.2.8 , 23.0.5 or 24.0.1. There are no known workarounds for this issue.

Affected configurations

• nextcloud nextcloud server (< 19.0.13.7) • nextcloud nextcloud server (< 22.2.8) • nextcloud nextcloud server (>= 20.0.0 < 20.0.14.6) • nextcloud nextcloud server (>= 21.0.0 < 21.0.9.5) • nextcloud nextcloud server (>= 23.0.0 < 23.0.5) • nextcloud nextcloud server 24.0.0

Related

Weakness · CWE (2)

  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
  • CWE-93 Improper Neutralization of CRLF Sequences weakness

References