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CVE-2023-44765

Status: ModifiedMedium (5.4)—💥 PoC

A Cross Site Scripting (XSS) vulnerability in Concrete CMS versions 8.5.12 and below, and 9.0 through 9.2.1 allows an attacker to execute arbitrary code via a crafted script to Plural Handle of the Data Objects from System & Settings.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (1)

Concretecms — Concrete CMS

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-44765",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
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          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
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  "published": "2023-10-06T13:15:12.923",
  "references": [
    {
      "url": "https://github.com/sromanhu/ConcreteCMS-Stored-XSS---Associations",
      "tags": [
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        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.concretecms.org/about/project-news/security/2023-11-09-security-blog-about-updated-cves-and-new-release",
      "source": "cve@mitre.org"
    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "lang": "en",
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    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Cross Site Scripting (XSS) en Concrete CMS v.9.2.1 permite a un atacante ejecutar código arbitrario a través de un script manipulado para Plural Handle de los objetos de datos desde System & Settings."
    }
  ],
  "lastModified": "2026-06-17T06:27:47.183",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:concretecms:concrete_cms:9.2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
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