Vulnerability · Published Mar 20, 2020 · Assigned by hackerone
CVE-2020-8138
Medium 6.5
In plain English
A medium-severity server-side request forgery in Nextcloud Server. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities).
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.4%top 27.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a malicious calendar URL.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Nextcloud Server | Fixed in 17.0.2, 16.0.7, and 15.0.14 |
Weakness: CWE-918
References
- https://hackerone.com/reports/736867 x_refsource_MISC
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-014 x_refsource_CONFIRM