Nextcloud Mail auto configurator can be tricked into sending account information to wrong servers
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. When a user is trying to set up a mail account with an email address like [email protected] that does not support auto configuration, and an attacker managed to register autoconfig.tld, the used email details would be send to the server of the attacker. It is recommended that the Nextcloud Mail app is upgraded to 1.14.6, 1.15.4, 2.2.11, 3.6.3, 3.7.7 or 4.0.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| nextcloud | security-advisories | 1.9.0 to before 1.14.6; 2.1.0 to before 2.2.11; 3.1.0 to before 3.6.3; 1.15.0 to before 1.15.4; 3.7.0 to before 3.7.7 | 1.14.6, 2.2.11, 3.6.3, 1.15.4, 3.7.7 | Patch available | CNA |
- security-advisories Vendornextcloud Affected 1.9.0 to before 1.14.6; 2.1.0 to before 2.2.11; 3.1.0 to before 3.6.3; 1.15.0 to before 1.15.4; 3.7.0 to before 3.7.7 Fixed in 1.14.6, 2.2.11, 3.6.3, 1.15.4, 3.7.7 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextcloud:mail:*:*:*:*:*:nextcloud:*:* | 1.9.0 to before 1.14.6; 1.15.0 to before 1.15.4; 2.1.0 to before 2.2.11; 3.1.0 to before 3.6.3; 3.7.0 to before 3.7.7 | Vulnerable | nextcloud |
- cpe:2.3:a:nextcloud:mail:*:*:*:*:*:nextcloud:*:* Versions 1.9.0 to before 1.14.6; 1.15.0 to before 1.15.4; 2.1.0 to before 2.2.11; 3.1.0 to before 3.6.3; 3.7.0 to before 3.7.7 Vulnerable ·nextcloud
Remediation
- Fix · CNA security-advisories (nextcloud) Fixed in 1.14.6, 2.2.11, 3.6.3, 1.15.4, 3.7.7
Timeline
- 2026-10-02 Threatist record created from CVE-2024-52508
References
More nextcloud Mail vulnerabilities
- TI-2023-09741 Blind SSRF via server URL input in the Nextcloud Mail app CVSS 3.1MEDIUM 5.0
- TI-2022-13176 Unauthenticated SSRF in 3rd party module "cerdic/csstidy" CVSS 3.1CRITICAL 9.8
- TI-2023-26170 Nextcloud Mail app vulnerable to Server-Side Request Forgery CVSS 3.1CRITICAL 9.8
- TI-2021-12320 Missing permission check on email metadata retrieval CVSS 3.1HIGH 8.8
- TI-2020-06574 A missing verification of the TLS host in Nextcloud Mail 1.1.3 allowed a man in the middle attack. CVSS 3.1HIGH 7.0
- TI-2023-09742 Nexcloud Mail app temporarily stores cleartext password in database CVSS 3.1MEDIUM 6.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences