Cross-site scripting (XSS) vulnerability in Operation/User.pm in Plain Black WebGUI before 7.3.5 (beta) allows remote attackers to inject arbitrary web script or HTML via the username parameter during anonymous registration, a different vector than CVE-2007-0308. NOTE: it is possible that a separate "WikiPage titles" issue was also fixed.
Conclusion & alert: CVE-2007-0407 is rated Moderate Risk (55.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.57%). 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 | 2025-11-03 | 1.27% | 1.57% | +0.29% |
| 2 | 2025-09-11 | 0.96% | 1.27% | +0.32% |
| 3 | 2025-04-09 | — | 0.96% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| plain_black | webgui | 6.3.0 | cpe:2.3:a:plain_black:webgui:6.3.0:*:*:*:*:*:*:* |
| plain_black | webgui | 6.4.0 | cpe:2.3:a:plain_black:webgui:6.4.0:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.0 | cpe:2.3:a:plain_black:webgui:6.5.0:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.1 | cpe:2.3:a:plain_black:webgui:6.5.1:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.2 | cpe:2.3:a:plain_black:webgui:6.5.2:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.3 | cpe:2.3:a:plain_black:webgui:6.5.3:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.4 | cpe:2.3:a:plain_black:webgui:6.5.4:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.5 | cpe:2.3:a:plain_black:webgui:6.5.5:*:*:*:*:*:*:* |
| plain_black | webgui | 6.5.6 | cpe:2.3:a:plain_black:webgui:6.5.6:*:*:*:*:*:*:* |
| plain_black | webgui | 6.6.0 | cpe:2.3:a:plain_black:webgui:6.6.0:*:*:*:*:*:*:* |
| plain_black | webgui | 6.6.1 | cpe:2.3:a:plain_black:webgui:6.6.1:*:*:*:*:*:*:* |
| plain_black | webgui | 6.6.2 | cpe:2.3:a:plain_black:webgui:6.6.2:*:*:*:*:*:*:* |
| plain_black | webgui | 6.6.3 | cpe:2.3:a:plain_black:webgui:6.6.3:*:*:*:*:*:*:* |
| plain_black | webgui | 6.6.4 | cpe:2.3:a:plain_black:webgui:6.6.4:*:*:*:*:*:*:* |
| plain_black | webgui | 6.6.5 | cpe:2.3:a:plain_black:webgui:6.6.5:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.0 | cpe:2.3:a:plain_black:webgui:6.7.0:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.1 | cpe:2.3:a:plain_black:webgui:6.7.1:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.2 | cpe:2.3:a:plain_black:webgui:6.7.2:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.3 | cpe:2.3:a:plain_black:webgui:6.7.3:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.4 | cpe:2.3:a:plain_black:webgui:6.7.4:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.5 | cpe:2.3:a:plain_black:webgui:6.7.5:*:*:*:*:*:*:* |
| plain_black | webgui | 6.7.6 | cpe:2.3:a:plain_black:webgui:6.7.6:*:*:*:*:*:*:* |
| plain_black | webgui | 6.8.1 | cpe:2.3:a:plain_black:webgui:6.8.1:*:*:*:*:*:*:* |
| plain_black | webgui | 6.8.2 | cpe:2.3:a:plain_black:webgui:6.8.2:*:*:*:*:*:*:* |
| plain_black | webgui | 6.8.3 | cpe:2.3:a:plain_black:webgui:6.8.3:*:*:*:*:*:*:* |
| plain_black | webgui | 6.8.4 | cpe:2.3:a:plain_black:webgui:6.8.4:*:*:*:*:*:*:* |
| plain_black | webgui | 6.8.5 | cpe:2.3:a:plain_black:webgui:6.8.5:*:*:*:*:*:*:* |
| plain_black | webgui | 6.8.6 | cpe:2.3:a:plain_black:webgui:6.8.6:*:*:*:*:*:*:* |
| plain_black | webgui | 7.2.3 | cpe:2.3:a:plain_black:webgui:7.2.3:*:*:*:*:*:*:* |
| plain_black | webgui | 7.3.4_beta | cpe:2.3:a:plain_black:webgui:7.3.4_beta:*:*:*:*:*:*:* |