passwordRequestPOST.jsp in Tyler Technologies TaxWeb 3.13.3.1 sends different HTTP status codes for invalid password-recovery requests depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of requests to the (1) Assessor, (2) Recorder, or (3) Treasurer application.
Conclusion & alert: CVE-2013-6020 is rated Moderate Risk (45.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.14%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 0.50% | 1.14% | +0.64% |
| 2 | 2025-10-24 | 0.40% | 0.50% | +0.10% |
| 3 | 2025-09-24 | — | 0.40% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| URL | Tags |
|---|---|
| http://www.kb.cert.org/vuls/id/911678 | US Government Resource |