FKIE_CVE-2026-34442

Vulnerability from fkie_nvd - Published: 2026-03-31 22:16 - Updated: 2026-04-01 19:49
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version (http://localhost:8080/system/status) allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External Resource Loading and Open Redirect behavior. When the application constructs links and assets using the unvalidated Host header, user requests can be redirected to attacker-controlled domains and external resources may be loaded from malicious servers. This issue has been patched in version 1.8.211.
References
security-advisories@github.comhttps://github.com/freescout-help-desk/freescout/commit/889d75c8e3c15e6a7ddb6a4d4f65cc0379c29213Patch
security-advisories@github.comhttps://github.com/freescout-help-desk/freescout/releases/tag/1.8.211Release Notes
security-advisories@github.comhttps://github.com/freescout-help-desk/freescout/security/advisories/GHSA-822g-7rw5-53xjExploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-822g-7rw5-53xjExploit, Vendor Advisory
Impacted products
Vendor Product Version
freescout freescout *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4261C3DA-8327-4943-8E43-DE1D662BC634",
              "versionEndExcluding": "1.8.211",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FreeScout is a free help desk and shared inbox built with PHP\u0027s Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version (http://localhost:8080/system/status) allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External Resource Loading and Open Redirect behavior. When the application constructs links and assets using the unvalidated Host header, user requests can be redirected to attacker-controlled domains and external resources may be loaded from malicious servers. This issue has been patched in version 1.8.211."
    }
  ],
  "id": "CVE-2026-34442",
  "lastModified": "2026-04-01T19:49:03.010",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
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        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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          "attackVector": "NETWORK",
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          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
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  "published": "2026-03-31T22:16:19.333",
  "references": [
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      "tags": [
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      "source": "security-advisories@github.com",
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-20"
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        {
          "lang": "en",
          "value": "CWE-601"
        },
        {
          "lang": "en",
          "value": "CWE-829"
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      "type": "Secondary"
    },
    {
      "description": [
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          "lang": "en",
          "value": "CWE-601"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.