Server-side request forgery (SSRF) vulnerability exists in a-blog cms Ver.3.1.x series versions prior to Ver.3.1.12 and Ver.3.0.x series versions prior to Ver.3.0.32. If this vulnerability is exploited, a user with an administrator or higher privilege who can log in to the product may obtain arbitrary files on the server and information on the internal server that is not disclosed to the public.
Conclusion & alert: CVE-2024-30420 is rated Low Risk (35.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.28%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 2025-11-21 | 0.20% | 0.28% | +0.08% |
| 2 | 2025-11-18 | 0.28% | 0.20% | -0.08% |
| 3 | 2025-10-11 | — | 0.28% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.4 | 3.1 | MEDIUM |
|
0.7 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| appleple | a-blog_cms | >= 3.0.0, < 3.0.32 | cpe:2.3:a:appleple:a-blog_cms:*:*:*:*:*:*:*:* |
| appleple | a-blog_cms | >= 3.1.0, < 3.1.12 | cpe:2.3:a:appleple:a-blog_cms:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://developer.a-blogcms.jp/blog/news/JVN-70977403.html | Vendor Advisory |
| https://jvn.jp/en/jp/JVN70977403/ | Third Party Advisory |