Is CVE-2025-8573 in the CISA KEV catalog?

No. CVE-2025-8573 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-8573?

CVE-2025-8573 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2025-8573?

CVE-2025-8573 has an EPSS score of 0.42% (34th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-8573?

Upgrade concrete cms to 9.4.3 or later.

CVE & CISA-KEV Catalog

CVE-2025-8573

MEDIUM

4.8

CVSS v3

NVD

Description

Concrete CMS versions 9 through 9.4.2 are vulnerable to Stored XSS from Home Folder on Members Dashboard page. Version 8 was not affected. A rogue admin could set up a malicious folder containing XSS to which users could be directed upon login. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.0 with vector CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks sealldev (Noah Cooper) for reporting via HackerOne.

CWE-20Improper Input Validation CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

concrete cmsNVD

Affected:>= 9.0, < 9.4.3Fixed in:9.4.3CVE-2025-8573derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.42%probability of exploitation in 30 days

34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Release Notes1

documentation.concretecms.org

Product1

concretecms.org

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-09-04.