An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21526
Reference (s):
- https://github.com/halo-dev/halo/issues/421