CVE-2025-31103

Name: CVE-2025-31103
Creator: NVD / NIST
Published: 2025-03-31T05:15:16.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2025-31103 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

CVSS 3.0

7.5/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.46%

36.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Appleple	A-Blog Cms	<= 2.8.80
Appleple	A-Blog Cms	>= 2.9.0, <= 2.9.46
Appleple	A-Blog Cms	>= 2.10.0, < 2.10.58
Appleple	A-Blog Cms	>= 2.11.0, < 2.11.70
Appleple	A-Blog Cms	>= 3.0.0, < 3.0.41
Appleple	A-Blog Cms	>= 3.1.0, < 3.1.37

References

https://developer.a-blogcms.jp/blog/news/entry-4197.htmlVendor Advisory
https://developer.a-blogcms.jp/blog/news/security-update202503.htmlVendor Advisory
https://jvn.jp/en/jp/JVN66982699/Third Party Advisory

Timeline

Published: Mar 31, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-31103?

How severe is CVE-2025-31103?

CVE-2025-31103 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2025-31103?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-31103?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST