CVE-2021-43466 describes a critical remote code execution (RCE) vulnerability affecting Thymeleaf when integrated with Spring 5 (thymeleaf-spring5:3.0.12) under specific template injection scenarios. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity, allowing an unauthenticated attacker to achieve full compromise of confidentiality, integrity, and availability. Despite its critical severity, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog, indicating no known active exploitation. Community discussion and media coverage are also minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.0.12CPE matchmatch criteria | cpe:2.3:a:thymeleaf:thymeleaf:3.0.12:*:*:*:*:*:*:* |
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.