Is CVE-2024-30420 in the CISA KEV catalog?

No. CVE-2024-30420 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-30420?

CVE-2024-30420 has a CVSS v3 base score of 4.4 (MEDIUM).

What is the EPSS score for CVE-2024-30420?

CVE-2024-30420 has an EPSS score of 0.32% (24th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-30420?

Upgrade a-blog cms to 3.1.12 or later.

CVE & CISA-KEV Catalog

CVE-2024-30420

MEDIUM

4.4

CVSS v3

NVD

Description

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.

CWE-918Server-Side Request Forgery (SSRF)

How to fix

Remediation Available

a-blog cmsNVD

Affected:>= 3.1.0, < 3.1.12Fixed in:3.1.12CVE-2024-30420derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.32%probability of exploitation in 30 days

24thpercentile

Low risk: more likely to be exploited than 24% of all known CVEs.

References

Vendor Advisory1

developer.a-blogcms.jp

Third-Party Advisory1

jvn.jp

Related Vulnerabilities

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-21893	High	8.2	100%	KEV + Ransom	-
CVE-2021-40438	Critical	9.0	100%	KEV	Fix
CVE-2021-34473	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-26855	Critical	9.1	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41040	High	8.8	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-12.