VulnerabilityModified
CVE-2020-8138
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.
MEDIUM 6.5EPSS 1.40%
Does this matter?
Lower severity and a low EPSS score (1.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.40% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- nextcloud/nextcloud server
- Source
- support@hackerone.com
References
- https://hackerone.com/reports/736867Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-014Third Party Advisory
- https://hackerone.com/reports/736867Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-014Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.