# CVE-2023-38286: CVE-2023-38286

- Exploited (CISA KEV): no
- Published: 2023-07-14
- CVSS: not scored
- EPSS: 1.0% (62th percentile)

Thymeleaf through 3.1.1.RELEASE, as used in spring-boot-admin (aka Spring Boot Admin) through 3.1.1 and other products, allows sandbox bypass via crafted HTML. This may be relevant for SSTI (Server Side Template Injection) and code execution in spring-boot-admin if MailNotifier is enabled and there is write access to environment variables via the UI.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2023-10-10 | 88 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2023-10-10 · new · rule 200104870
  > Added: signature 200104870 "Spring Boot Admin MailNotifier Remote Code Execution" (Server Side Code Injection, risk High), systems: Java Servlets/JSP, Spring Boot. References: CVE-2023-38286.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2023-12-12 · new · rule 200104870
  > Added: signature 200104870 "Spring Boot Admin MailNotifier Remote Code Execution" (Server Side Code Injection, risk High), systems: Java Servlets/JSP, Spring Boot. References: CVE-2023-38286.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2023-38286 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-38286