CVE-2023-28472Network attack vector

Cookie disclosure via missing security attributes

Published Apr 28, 2023 · Updated Aug 2, 2024

Missing cookie protections in Concrete CMS 8.5.12 and earlier and 9.0 through 9.1.3 allow remote attackers to steal ccmPoll cookie values. The Survey Block Controller creates ccmPoll cookies without Secure and HttpOnly attributes, exposing them to cleartext transport and script access. Exploitation requires interception of an HTTP request or a separate script-execution foothold, and disclosure is limited to the poll cookie.

CVSS severity3.4
Low
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing cookie protections in Concrete CMS 8.5.12 and earlier and 9.0 through 9.1.3 allow remote attackers to steal ccmPoll cookie values. The Survey Block Controller creates ccmPoll cookies without Secure and HttpOnly attributes, exposing them to cleartext transport and script access. Exploitation requires interception of an HTTP request or a separate script-execution foothold, and disclosure is limited to the poll cookie.

The record

CVE
CVE-2023-28472
Published
Apr 28, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-613
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.4Concrete CMS Security TeamCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/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-613Insufficient Session Expiration

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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