CVE-2023-25160

low-risk
Published 2023-02-13

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.

Do I need to act?

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0.34% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.1/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Mail

Affected Vendors

Nextcloud

References (6)

Patch https://github.com/nextcloud/mail/pull/7740
Vendor Advisory https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m45f-r...
Permissions Required https://hackerone.com/reports/1784681
Patch https://github.com/nextcloud/mail/pull/7740
Vendor Advisory https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m45f-r...
Permissions Required https://hackerone.com/reports/1784681
24
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal