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cve.new
GHSA-r7q4-cw9r-vhp4low3.1

Concrete CMS Stored XSS in the Custom Class page editing

Check your stack

The advisory, in context

Concrete CMS version 9 before 9.2.8 and previous versions before 8.5.16 are vulnerable to Stored XSS in the Custom Class page editing. Prior to the fix, a rogue administrator could insert malicious code in the custom class field due to insufficient validation of administrator provided data. The Concrete CMS security team gave this vulnerability a CVSS v3.1 score of 3.1 with a vector of AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator . Thanks Alexey Solovyev for reporting. 

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

Ecosystem versions

From 9.0.0RC1 before 9.2.8

Fixed in 9.2.8

19 explicitly affected versions

9.0.0, 9.0.0RC1, 9.0.0RC3, 9.0.0RC4, 9.0.1, 9.0.2, 9.1.0, 9.1.1, 9.1.2, 9.1.3, 9.2.0, 9.2.0RC2, 9.2.1, 9.2.2, 9.2.3, 9.2.4, 9.2.5, 9.2.6, 9.2.7

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "9.0.0RC1"
        },
        {
          "fixed": "9.2.8"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "9.0.0",
    "9.0.0RC1",
    "9.0.0RC3",
    "9.0.0RC4",
    "9.0.1",
    "9.0.2",
    "9.1.0",
    "9.1.1",
    "9.1.2",
    "9.1.3",
    "9.2.0",
    "9.2.0RC2",
    "9.2.1",
    "9.2.2",
    "9.2.3",
    "9.2.4",
    "9.2.5",
    "9.2.6",
    "9.2.7"
  ]
}
Ecosystem versions

Earlier releases before 8.5.16

Fixed in 8.5.16

38 explicitly affected versions

8.0, 8.0.1, 8.0.2, 8.0.3, 8.1.0, 8.2.0, 8.2.0RC2, 8.2.1, 8.3.0, 8.3.1, 8.3.2, 8.4.0, 8.4.0RC3, 8.4.0RC4, 8.4.1, 8.4.2, 8.4.3, 8.4.4, 8.4.5, 8.5.0, 8.5.0RC1, 8.5.0RC2, 8.5.1, 8.5.10, 8.5.11, 8.5.12, 8.5.13, 8.5.14, 8.5.15, 8.5.2, 8.5.3, 8.5.4, 8.5.5, 8.5.6, 8.5.6RC1, 8.5.7, 8.5.8, 8.5.9

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "8.5.16"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "8.0",
    "8.0.1",
    "8.0.2",
    "8.0.3",
    "8.1.0",
    "8.2.0",
    "8.2.0RC2",
    "8.2.1",
    "8.3.0",
    "8.3.1",
    "8.3.2",
    "8.4.0",
    "8.4.0RC3",
    "8.4.0RC4",
    "8.4.1",
    "8.4.2",
    "8.4.3",
    "8.4.4",
    "8.4.5",
    "8.5.0",
    "8.5.0RC1",
    "8.5.0RC2",
    "8.5.1",
    "8.5.10",
    "8.5.11",
    "8.5.12",
    "8.5.13",
    "8.5.14",
    "8.5.15",
    "8.5.2",
    "8.5.3",
    "8.5.4",
    "8.5.5",
    "8.5.6",
    "8.5.6RC1",
    "8.5.7",
    "8.5.8",
    "8.5.9"
  ]
}

References