CVE-2023-44766

4.8 MEDIUM 0.6% exploit odds No fix listed

What it is

A Cross Site Scripting (XSS) vulnerability in Concrete CMS v.9.2.1 allows an attacker to execute arbitrary code via a crafted script to the SEO - Extra from Page Settings. NOTE: the vendor disputes this because this SEO-related header change can only be made by an admin, and allowing an admin to place JavaScript there is an intentional customization feature.

At a glance

Exploitability: Can be exploited over the network with an admin-level account, but needs a user to act. Limited direct impact.
Exploit odds: 0.6% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2023-10-06 13:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 06:27 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.6% in the next 30 days (EPSS).
Severity: 4.8 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2023-10-06 13:15 UTC
Last modified: 2026-06-17 06:27 UTC
Exploit probability: 0.6% · EPSS, next 30 days
Weakness: CWE-79 · Cross-site scripting
Record status: Modified

Affected

Concretecms Concrete Cms 9.2.1

Attack profile CVSS 3.1 · 4.8

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-44766.md and follow it. Check whether this project is affected by CVE-2023-44766. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record