CVE-2025-31103

HIGH

7.5

CVSS Score

Published: March 31, 2025 at 04:54 AM UTC

Updated: June 17, 2026 at 09:09 AM UTC

1 product affected across 1 vendorA Blog CMS

Using a-blog cms (Ver.3.1.x series) by appleple inc.?

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Severity

HIGH7.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

Untrusted data deserialization vulnerability exists in a-blog cms. Processing a specially crafted request may store arbitrary files on the server where the product is running. This can be leveraged to execute an arbitrary script on the server.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

A Blog CMS · Appleple

95%

v ≤ 2.8.80v < er.2.10.58v < er.2.11.70v < er.2.8.80v < er.2.9.46v < er.3.0.41v < er.3.1.372.10.0 ≤ v < 2.10.582.11.0 ≤ v < 2.11.702.9.0 ≤ v ≤ 2.9.463.0.0 ≤ v < 3.0.413.1.0 ≤ v < 3.1.37

Affected range stops below 2.10.58, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.11.70, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.0.41, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.1.37, so it looks safe — our inference, not a vendor statement

Affected range stops below er.2.10.58, so it looks safe — our inference, not a vendor statement

Affected range stops below er.2.11.70, so it looks safe — our inference, not a vendor statement

Affected range stops below er.2.8.80, so it looks safe — our inference, not a vendor statement

Affected range stops below er.2.9.46, so it looks safe — our inference, not a vendor statement

Affected range stops below er.3.0.41, so it looks safe — our inference, not a vendor statement

Affected range stops below er.3.1.37, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Vendor Advisory

Source: [email protected]

https://developer.a-blogcms.jp/blog/news/entry-4197.html

Vendor Advisory

Source: [email protected]

https://developer.a-blogcms.jp/blog/news/security-update202503.html

Third Party Advisory

Source: [email protected]

https://jvn.jp/en/jp/JVN66982699/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-502

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