CVE-2023-47609Network attack vector

Authenticated arbitrary code execution via SQL injection

Published Nov 14, 2023 · Updated Jan 8, 2025

SQL injection in Thinkingreed Inc. OSS Calendar before 2.0.3 allows remote authenticated users to execute arbitrary code or read or alter stored data. The vendor and JPCERT/CC have not disclosed the affected request parameter, server-side handler, or database query that mishandles the crafted input. A valid product login and a specially crafted network request are required; exploitation can compromise stored data or execute arbitrary code.

CVSS severity8.8
High
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Thinkingreed Inc. OSS Calendar before 2.0.3 allows remote authenticated users to execute arbitrary code or read or alter stored data. The vendor and JPCERT/CC have not disclosed the affected request parameter, server-side handler, or database query that mishandles the crafted input. A valid product login and a specially crafted network request are required; exploitation can compromise stored data or execute arbitrary code.

The record

CVE
CVE-2023-47609
Published
Nov 14, 2023
Updated
Jan 8, 2025
Vendor
Thinkingreed Inc.
Product
OSS Calendar
Classifications
CWE-89
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 8, 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=prior to v.2.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thinkingreed Inc. · OSS Calendarversion=prior to v.2.0.3

Published CVSS scores

8.8JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5JPCERT/CCAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89SQL Injection

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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