CVE-2020-21526 describes an arbitrary file writing vulnerability in Halo v1.1.3, specifically affecting its background file writing interface. This critical flaw, with a CVSS score of 9.8, allows unauthenticated attackers to bypass directory traversal checks using a manipulated 'startsWith' function, leading to full compromise of confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion, the high severity warrants immediate attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.1.3CPE matchmatch criteria | cpe:2.3:a:halo:halo:1.1.3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.