CVE-2020-8866 is a file upload vulnerability in Horde Groupware Webmail Edition 5.2.22, specifically within the add.php component, affecting Debian and Horde Groupware installations. It allows an authenticated remote attacker to create arbitrary files due to insufficient validation of user-supplied data. This vulnerability has a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity requiring authentication, leading to high integrity impact but no confidentiality or availability impact on its own. While not actively exploited in the wild (no KEV entry), public exploit code exists on ExploitDB, and it has received minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.2.22CPE matchmatch criteria | cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:* | ||
< 2.0.20CPE matchmatch criteria | cpe:2.3:a:horde:horde_form:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.