Which versions of Concrete Cms are affected by CVE-2025-8573?

CVE-2025-8573 is a low-severity vulnerability involving input validation (CVSS 2.0).. A patch is available.

Is there a public PoC exploit available for CVE-2025-8573?

Yes, a public proof-of-concept exploit is available for CVE-2025-8573. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-8573?

During next maintenance window: Apply vendor patches when convenient. Verify input validation controls are in place.

Concrete Cms CVE-2025-8573

Q: What is the CVSS score of CVE-2025-8573?

CVE-2025-8573 has a CVSS 4.0 base score of 2.0 (Low). CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

LOW

Improper Input Validation (CWE-20)

2025-08-05 ff5b8ace-8b95-4078-9743-eac1ca5451de

XSS Concrete Cms

2.0

CVSS 4.0

CVSS VectorNVD

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Scope

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:05 vuln.today

PoC Detected

Sep 04, 2025 - 15:54 vuln.today

Public exploit code

CVE Published

Aug 05, 2025 - 23:15 nvd

LOW 2.0

DescriptionNVD

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.

AnalysisAI

Concrete CMS versions 9 through 9.4.2 are vulnerable to Stored XSS from Home Folder on Members Dashboard page. Rated low severity (CVSS 2.0), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. 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. Affected products include: Concretecms Concrete Cms. Version information: through 9.4.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2025-8573 vulnerability details – vuln.today

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