CVE-2023-48653

Concrete CMS Cross Site Request Forgery (CSRF) vulnerability

4.3 MediumFix available

Concrete CMS before 8.5.14 and 9 before 9.2.3 allows Cross Site Request Forgery (CSRF) via ccm/calendar/dialogs/event/delete/submit. An attacker can force an admin to delete events on the site because the event ID is numeric and sequential.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.28%Up 0.2 points since Dec 26, 2023

What each source reports

NVD Score used 4.3

Record: CVE-2023-48653
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-352
Updated: 2026-11-02

CVE List No score

Record: CVE-2023-48653
Updated: 2026-11-02

EUVDEUVD-2024-0493 No score

Record: EUVD-2024-0493
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3rxx-8f33-7p6p 4.3

Concrete CMS Cross Site Request Forgery (CSRF) vulnerability

Record: GHSA-3rxx-8f33-7p6p
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-352
Updated: 2026-11-02

OSVGHSA-3rxx-8f33-7p6p 4.3

Concrete CMS Cross Site Request Forgery (CSRF) vulnerability

Record: GHSA-3rxx-8f33-7p6p
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-352
Updated: 2026-11-02

OSV No score

Record: CVE-2023-48653
Updated: 2026-11-02

Affected products

concretecms concrete cms

Affected packages

Affected packages
Package	Affected	Fixed
`concrete5/concrete5` Packagist	before 8.5.14	8.5.14
`concrete5/concrete5` Packagist	9.0.0 up to 9.2.3	9.2.3
`concrete5/concrete5` Packagist	before 8.5.14, plus listed versions 8.08.0.18.0.28.0.38.1.0 Show 31 moreShow less 8.2.08.2.0RC28.2.18.3.08.3.18.3.28.4.08.4.0RC38.4.0RC48.4.18.4.28.4.38.4.48.4.58.5.08.5.0RC18.5.0RC28.5.18.5.108.5.118.5.128.5.138.5.28.5.38.5.48.5.58.5.68.5.6RC18.5.78.5.88.5.9	8.5.14
`concrete5/concrete5` Packagist	9.0.0 up to 9.2.3, plus listed versions 9.0.19.0.29.1.09.1.19.1.2 Show 5 moreShow less 9.1.39.2.09.2.0RC29.2.19.2.2	9.2.3

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-48653 is a medium vulnerability (CVSS 4.3) in Concretecms Concrete Cms, published December 25, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. Fixed in concrete5/concrete5 8.5.14.