Security readout for executives and security teams
Plain-English summary
This is a stored cross-site scripting flaw in Concrete CMS. A highly privileged CMS user could save unsafe content through Express entity association handling, which may later run in another user's browser. Business impact is limited but real: possible CMS-context data exposure or unauthorized actions. Updating Concrete CMS is the named remediation.
Executive priority
Treat this as a moderate-priority CMS maintenance issue, not an emergency internet-wide incident. Prioritize upgrades for externally reachable CMS administration portals, shared administrator environments, and sites with many privileged content managers.
Technical view
CVE-2022-43695 affects Concrete CMS below 8.5.10 and versions 9.0.0 through 9.1.2. The dashboard/system/express/entities/associations area did not properly sanitize an associated entity name, enabling stored XSS. CVSS 3.1 is 4.8: network reachable, low complexity, high privileges required, user interaction required, changed scope, low confidentiality and integrity impact.
Likely exposure
Exposure is limited to Concrete CMS deployments running below 8.5.10 or 9.0.0 through 9.1.2, especially where administrators or similarly privileged users manage Express entities and associations. The sources do not describe public visitors as direct attackers because the CVSS vector requires high privileges.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Exploitation requires high privileges and user interaction, reducing broad internet risk. Stored XSS remains relevant if a privileged CMS account is compromised or multiple administrators use the affected dashboard area.
Researcher notes
Evidence is strongest for affected version ranges, location, CWE-79 class, CVSS vector, and upgrade targets. The source bundle does not provide proof-of-concept details, observed exploitation, or alternative mitigations beyond updating. Avoid assuming impact outside the Concrete CMS dashboard context described.
Mitigation direction
- Upgrade Concrete CMS 9.x installations to 9.1.3 or later.
- Upgrade Concrete CMS 8.x installations to 8.5.10 or later.
- Review vendor release notes and the 2022-10-31 advisory before rollout.
- Limit CMS dashboard access to trusted administrators.
- Review privileged CMS accounts for unnecessary access.
Validation and detection
- Inventory Concrete CMS versions across managed sites.
- Confirm affected versions are below 8.5.10 or between 9.0.0 and 9.1.2.
- Check whether Express entities and associations are used by administrators.
- Verify upgraded systems report 8.5.10+, 9.1.3+, or a later supported release.
- Review logs for unusual privileged dashboard activity where available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-43695 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N1.72.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.8MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/concretecms/concretecms/releases/9.1.3CVE reference
- https://github.com/concretecms/concretecms/releases/8.5.10CVE reference
- https://documentation.concretecms.org/developers/introduction/version-history/913-release-notesCVE reference
- https://documentation.concretecms.org/developers/introduction/version-history/8510-release-notesCVE reference
- https://www.concretecms.org/about/project-news/security/concrete-cms-security-advisory-2022-10-31CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.