Vulnerability · Published Jan 6, 2021 · Assigned by hackerone
CVE-2020-8280
Medium 5.4
In plain English
A medium-severity cross-site scripting in Nextcloud Contacts. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.6%top 49.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Nextcloud Contacts | Fixed in 3.4.1 |
Weakness: CWE-79
References
- https://hackerone.com/reports/998422 x_refsource_MISC
- https://nextcloud.com/security/advisory/?id=NC-SA-2020-044 x_refsource_MISC