FKIE_CVE-2026-45138

Vulnerability from fkie_nvd - Published: 2026-07-20 00:16 - Updated: 2026-07-21 20:27
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, the custom `html_purify` validation rule used to sanitize blog post bodies relies on by-reference mutation (`?string &$str`), but CodeIgniter 4's validator passes a local copy of the value, so the sanitized text is silently discarded. The Blog controller writes `$lanData['content']` directly into `blog_langs.content`, and the public template echoes it without escaping — yielding stored XSS executable in any visitor's browser, including the superadmin when previewing or editing posts. Version 0.31.9.0 patches the issue.
References
security-advisories@github.comhttps://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.9.0
security-advisories@github.comhttps://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-2m69-jmvh-6chr
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-2m69-jmvh-6chr
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ci4ms",
          "vendor": "ci4-cms-erp",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.31.9.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, the custom `html_purify` validation rule used to sanitize blog post bodies relies on by-reference mutation (`?string \u0026$str`), but CodeIgniter 4\u0027s validator passes a local copy of the value, so the sanitized text is silently discarded. The Blog controller writes `$lanData[\u0027content\u0027]` directly into `blog_langs.content`, and the public template echoes it without escaping \u2014 yielding stored XSS executable in any visitor\u0027s browser, including the superadmin when previewing or editing posts. Version 0.31.9.0 patches the issue."
    }
  ],
  "id": "CVE-2026-45138",
  "lastModified": "2026-07-21T20:27:18.523",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45138",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-20T13:18:37.167276Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-20T00:16:58.363",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.9.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-2m69-jmvh-6chr"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-2m69-jmvh-6chr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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