CVE-2025-68979Network attack vector

Unauthenticated data disclosure via user-controlled object key

Published Dec 30, 2025 · Updated Dec 30, 2025

Authorization bypass in Simple Calendar 3.5.9 and earlier allows remote attackers to access unauthorized data through a crafted object key. The plugin accepts a user-controlled object key without validating that the referenced object is authorized for the request; public sources do not identify the affected handler or object type. No authentication or user interaction is required, and the published assessment bounds the reported consequence to limited data disclosure rather than modification or service interruption.

CVSS severity5.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Simple Calendar 3.5.9 and earlier allows remote attackers to access unauthorized data through a crafted object key. The plugin accepts a user-controlled object key without validating that the referenced object is authorized for the request; public sources do not identify the affected handler or object type. No authentication or user interaction is required, and the published assessment bounds the reported consequence to limited data disclosure rather than modification or service interruption.

The record

CVE
CVE-2025-68979
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
Xtendify Technologies
Product
Simple Calendar
Classifications
CWE-639, CAPEC-180, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 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=n/a <=<= 3.5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Xtendify Technologies · Simple Calendarversion=n/a <=<= 3.5.9

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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