CVE-2021-29377 is a critical arbitrary file upload vulnerability affecting Pear Admin Think versions up to 2.1.2. Attackers can exploit a flaw in the file extension handling within app/common/service/UploadService.php to upload malicious .php files via admin.php/index/upload, leading to remote code execution. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network without authentication, allowing for complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.1.2CPE matchmatch criteria | cpe:2.3:a:pearadmin:pearadmin_think:*:*:*:*:*:*:*:* |
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.