Medium severity · published May 27, 2023
CVE-2023-33184
Blind SSRF in the Nextcloud Mail app on avatar endpoint
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
Nextcloud Mail is a mail app in Nextcloud. A blind SSRF attack allowed to send GET requests to services running in the same web server. It is recommended that the Mail app is update to version 3.02, 2.2.5 or 1.15.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · nextcloud
< 1.15.3; < 2.2.5; < 3.02 · source: vendor
MA
Mail · Nextcloud
1.13.0 before 1.15.3; 2.2.0 before 2.2.5; 2.3.0 before 3.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-33184
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-33184
Patch
https://github.com/nextcloud/mail/pull/8275
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8gph-9895-w564
Issue Tracking
https://hackerone.com/reports/1913095
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