In dotCMS 3.2.1, attacker can load captcha once, fill it with correct value and then this correct value is ok for forms with captcha check later.
Conclusion & alert: CVE-2016-8600 is rated High Exploit Risk (72.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.75%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.87% | 1.75% | +0.88% |
| 2 | 2025-03-30 | 1.29% | 0.87% | -0.42% |
| 3 | 2025-03-29 | — | 1.29% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| URL | Tags |
|---|---|
| http://seclists.org/fulldisclosure/2016/Oct/63 | Exploit Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/93798 | |
| https://github.com/dotCMS/core/issues/9330 | Vendor Advisory |
| https://security.elarlang.eu/cve-2016-8600-dotcms-captcha-bypass-by-reusing-valid-code.html | Exploit Third Party Advisory |