CVE-2025-12305Public exploitNetwork attack vector

Admin command execution via unfiltered class invocation

Published Oct 27, 2025 · Updated Oct 27, 2025

Deserialization in shiyi-blog 1.2.0 through 1.2.1 allows remote authenticated users to execute commands through the Job Handler. SysJobController passes an unfiltered job class name to reflection, invokes its method, and permits a SnakeYAML load call to fetch attacker-controlled bytecode. Reaching the scheduled-task run action requires administrator access; successful exploitation executes commands in the server process context.

CVSS severity6.3
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Deserialization in shiyi-blog 1.2.0 through 1.2.1 allows remote authenticated users to execute commands through the Job Handler. SysJobController passes an unfiltered job class name to reflection, invokes its method, and permits a SnakeYAML load call to fetch attacker-controlled bytecode. Reaching the scheduled-task run action requires administrator access; successful exploitation executes commands in the server process context.

The record

CVE
CVE-2025-12305
Published
Oct 27, 2025
Updated
Oct 27, 2025
Vendor
quequnlong
Product
shiyi-blog
Classifications
CWE-20, CWE-502, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.2.0
  2. Affected versionversion=1.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

quequnlong · shiyi-blogversion=1.2.0; version=1.2.1

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-502Deserialization of Untrusted Data
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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