Multiple SQL injection vulnerabilities in the authentication process in katzlbt (a) The Address Book 1.04e and earlier and (b) The Address Book Reloaded before 2.0-rc4 allow remote attackers to execute arbitrary SQL commands via the (1) username or (2) password parameters. NOTE: portions of these details are obtained from third party information.
Conclusion & alert: CVE-2006-4056 is rated Moderate Risk (53.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.46%). 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 | 2.07% | 1.46% | -0.60% |
| 2 | 2025-09-03 | 1.99% | 2.07% | +0.08% |
| 3 | 2025-03-30 | — | 1.99% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| the_address_book | the_address_book | <= 1.04e | cpe:2.3:a:the_address_book:the_address_book:*:*:*:*:*:*:*:* |
| the_address_book_reloaded | the_address_book_reloaded | <= 2.0 | cpe:2.3:a:the_address_book_reloaded:the_address_book_reloaded:*:*:*:*:*:*:*:* |