VulnerabilityModified
CVE-2020-8280
A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting (XSS) attacks.
MEDIUM 5.4EPSS 0.63%
Does this matter?
Lower severity and a low EPSS score (0.63%). Track it; it rarely justifies an emergency change on its own.
Description
A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting (XSS) attacks.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.63% probability · 48th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- nextcloud/contacts
- Source
- support@hackerone.com
References
- https://hackerone.com/reports/998422Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-044Vendor Advisory
- https://hackerone.com/reports/998422Exploit, Third Party Advisory
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-044Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.