CVE-2021-3317 describes an authenticated command injection vulnerability in KLog Server through version 2.4.1. The flaw resides in the async.php script, which insecurely uses shell_exec() on user-supplied input, allowing an authenticated attacker to execute arbitrary commands. This vulnerability carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. An attacker with legitimate credentials can fully compromise the affected system. While not listed on CISA's KEV catalog or actively exploited in the wild, public exploit code is available on ExploitDB (EDB-49511). There is currently no significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.4.1CPE matchmatch criteria | cpe:2.3:a:klogserver:klog_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.