What is the CVSS score of CVE-2021-43466?

CVE-2021-43466 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.9%.

Is there a public PoC exploit available for CVE-2021-43466?

Yes, a public proof-of-concept exploit is available for CVE-2021-43466. Prioritise patching immediately. EPSS: 3.9%.

Is there a patch available for CVE-2021-43466?

Yes, a patch is available for CVE-2021-43466. Update the affected software to the latest version immediately.

Thymeleaf CVE-2021-43466

CRITICAL

Code Injection (CWE-94)

2021-11-09 cve@mitre.org

RCE Code Injection Thymeleaf

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 09, 2021 - 12:15 nvd

CRITICAL 9.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

10 maven packages depend on org.thymeleaf:thymeleaf-spring5 (8 direct, 2 indirect)

Ecosystem-wide dependent count for version 3.0.13.RELEASE.

DescriptionNVD

In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in template injection may lead to remote code execution.

AnalysisAI

In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in template injection may lead to remote code execution. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in template injection may lead to remote code execution. Affected products include: Thymeleaf.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.