CVE-2023-36465Network attack vector

Survey-template manipulation via missing permission enforcement

Published Oct 6, 2023 · Updated Sep 19, 2024

Improper access control in Decidim 0.23.2 through 0.26.7 and 0.27.0 through 0.27.3 allows remote authenticated users to alter survey templates. The templates module exposes administration-panel template actions without enforcing the permissions required for template management. Any logged-in account can create, change, or delete survey templates; the advisory does not identify the affected controller or omitted check.

CVSS severity9.1
Critical
EPSS probability0.54%
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

Improper access control in Decidim 0.23.2 through 0.26.7 and 0.27.0 through 0.27.3 allows remote authenticated users to alter survey templates. The templates module exposes administration-panel template actions without enforcing the permissions required for template management. Any logged-in account can create, change, or delete survey templates; the advisory does not identify the affected controller or omitted check.

The record

CVE
CVE-2023-36465
Published
Oct 6, 2023
Updated
Sep 19, 2024
Vendor
Decidim
Product
Decidim
Classifications
CWE-284, CWE-732, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2024Record 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=>= 0.23.2, < 0.26.8
  2. Affected versionversion=>= 0.27.0, < 0.27.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Decidim · Decidimversion=>= 0.23.2, < 0.26.8; version=>= 0.27.0, < 0.27.4

Published CVSS scores

8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L

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-284Improper Access Control
CWE-732Incorrect Permission Assignment for Critical Resource
T1565.001Stored Data Manipulation

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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