CVE-2023-28820

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Published Apr 28, 2023 CVSS 3.1 · 2 Low EPSS < 1% KEV · Not listed

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.

Analysis

No analysis available yet

Affected Products

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

Metrics

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.

Exploit prediction score: < 1% (0.393% probability within 30 days)

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

Jan 31, 2025 4:15 PM Scoring metrics updated View changes

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

Subscriptions

Concretecms Concrete Cms

Weaknesses

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

Sources

CVE record Updated: Jan 31, 2025, 4:09 PM

Status: PUBLISHED
Assigner: mitre
Published: Apr 28, 2023, 12:00 AM
Updated: Jan 31, 2025, 4:09 PM
Reserved: Mar 24, 2023, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 1:51 PM

Updated: Aug 2, 2024, 1:51 PM

NVD Updated: Jun 17, 2026, 5:48 AM

Status: Modified
Published: Apr 28, 2023, 2:15 PM
Modified: Jun 17, 2026, 5:48 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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