CVE-2023-33184 json
Blind SSRF in the Nextcloud Mail app on avatar endpoint
published 2023-05-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37367
- cvss
- 3.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- nextcloud security-advisories
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/nextcloud/mail/pull/8275
patch
-
github.com
/nextcloud/security-advisories/security/advisories/GHSA-8gph-9895-w564
vendor-advisory
-
hackerone.com
/reports/1913095
issue-tracking
Sources
- CVE List CVE-2023-33184
- NVD CVE-2023-33184
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