CVE-2023-28820 - Vulnerability Details - OpenCVE

Description

Concrete CMS (previously concrete5) before 9.1 is vulnerable to stored XSS in RSS Displayer via the href attribute because the link element input was not sanitized.

Published: 2023-04-28

Score: 2 Low

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2023-1289	Concrete CMS (previously concrete5) before 9.1 is vulnerable to stored XSS in RSS Displayer via the href attribute because the link element input was not sanitized.
Github GHSA	GHSA-fgxj-g7x3-85cq	Stored cross site scripting in RSS displayer

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00393.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/concretecms/concretecms/releases
https://www.concretecms.org/about/project-news/security/concrete-cms-security-advisory-2023-04-20

History

Fri, 31 Jan 2025 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Concretecms Concrete Cms

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-04-28T00:00:00.000Z

Updated: 2025-01-31T16:09:34.124Z

Reserved: 2023-03-24T00:00:00.000Z

Link: CVE-2023-28820

Vulnrichment

Updated: 2024-08-02T13:51:37.889Z

NVD

Status : Modified

Published: 2023-04-28T14:15:10.703

Modified: 2026-06-17T05:48:50.420

Link: CVE-2023-28820

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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