CVE-2022-43687

Concrete CMS vulnerable to Session Fixation

5.4 MediumFix available

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 does not issue a new session ID upon successful OAuth authentication. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.

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: Low
Integrity: Low
Availability: None

Exploit likelihood

0.76%Down 0.2 points since Nov 15, 2022

What each source reports

NVD Score used 5.4

Record: CVE-2022-43687
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness: CWE-384
Updated: 2026-11-02

CVE List 5.4

Record: CVE-2022-43687
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness: CWE-384
Updated: 2026-11-02

EUVDEUVD-2022-7379 5.4

Record: EUVD-2022-7379
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-m53v-5x5x-5m2p 5.4

Concrete CMS vulnerable to Session Fixation

Record: GHSA-m53v-5x5x-5m2p
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness: CWE-384
Updated: 2026-11-02

OSV 5.4

Record: CVE-2022-43687
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Updated: 2026-11-02

OSVGHSA-m53v-5x5x-5m2p 5.4

Concrete CMS vulnerable to Session Fixation

Record: GHSA-m53v-5x5x-5m2p
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness: CWE-384
Updated: 2026-11-02

Affected products

concretecms concrete cms

Affected packages

Affected packages
Package	Affected	Fixed
`concrete5/concrete5` Packagist	before 8.5.10	8.5.10
`concrete5/concrete5` Packagist	9.0.0 up to 9.1.3	9.1.3
`concrete5/concrete5` Packagist	before 8.5.10, plus listed versions 8.08.0.18.0.28.0.38.1.0 Show 27 moreShow less 8.2.08.2.0RC28.2.18.3.08.3.18.3.28.4.08.4.0RC38.4.0RC48.4.18.4.28.4.38.4.48.4.58.5.08.5.0RC18.5.0RC28.5.18.5.28.5.38.5.48.5.58.5.68.5.6RC18.5.78.5.88.5.9	8.5.10
`concrete5/concrete5` Packagist	9.0.0 up to 9.1.3, plus listed versions 9.0.19.0.29.1.09.1.19.1.2	9.1.3

History

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

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

In short

CVE-2022-43687 is a medium vulnerability (CVSS 5.4) in Concretecms Concrete Cms, published November 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. Fixed in concrete5/concrete5 8.5.10.