CVE-2025-31103
HIGH EXPLOITEDa-blog cms < 2.8.80 - Remote Code Execution via Untrusted Data Deserialization
Title source: llmExploitation Summary
CVE-2025-31103 has been observed exploited in the wild (reported by VulnCheck KEV).
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.
References (3)
Core 3
Core References
Vendor Advisory
https://developer.a-blogcms.jp/blog/news/entry-4197.html
Third Party Advisory
https://jvn.jp/en/jp/JVN66982699/
Scores
CVSS v3
7.5
EPSS
0.0046
EPSS Percentile
36.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
VulnCheck KEV
2025-03-28
CWE
CWE-502
Status
published
Products (1)
appleple/a-blog_cms
< 2.8.80
Published
Mar 31, 2025
Tracked Since
Feb 18, 2026