Vulnerability-Lookup

GHSA-5FJM-C352-35CV

Vulnerability from github – Published: 2026-03-23 21:30 – Updated: 2026-03-30 15:31

Details

MailEnable versions prior to 10.55 contain a reflected cross-site scripting vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim's browser by crafting a malicious URL. Attackers can inject malicious code through the Attendees parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript.

Severity ?

6.1 (Medium)


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

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-32851"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-23T20:16:27Z",
    "severity": "MODERATE"
  },
  "details": "MailEnable versions prior to\u00a010.55 contain a reflected cross-site scripting vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim\u0027s browser by crafting a malicious URL. Attackers can inject malicious code through the Attendees parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript.",
  "id": "GHSA-5fjm-c352-35cv",
  "modified": "2026-03-30T15:31:36Z",
  "published": "2026-03-23T21:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32851"
    },
    {
      "type": "WEB",
      "url": "https://karmainsecurity.com/KIS-2026-05"
    },
    {
      "type": "WEB",
      "url": "https://mailenable.com/Standard-ReleaseNotes.txt"
    },
    {
      "type": "WEB",
      "url": "https://www.mailenable.com"
    },
    {
      "type": "WEB",
      "url": "https://www.mailenable.com/rss/article.asp?Source=RSSADMIN\u0026ID=MAILENABLEVERSION1055"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/mailenable-reflected-xss-via-freebusy-aspx-attendees-parameter"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-32851 (GCVE-0-2026-32851)

Vulnerability from cvelistv5 – Published: 2026-03-23 19:06 – Updated: 2026-03-23 19:46

Title

MailEnable < 10.55 Reflected XSS via FreeBusy.aspx Attendees Parameter

Summary

Severity ?

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CWE

CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')

Assigner

VulnCheck

References

URL

Tags

	https://www.mailenable.com/rss/article.asp?Source…	vendor-advisorypatch
	https://karmainsecurity.com/KIS-2026-05	technical-descriptionexploit
	https://mailenable.com/Standard-ReleaseNotes.txt	release-notes
	https://www.mailenable.com/	product
	https://www.vulncheck.com/advisories/mailenable-r…

Impacted products

	Vendor	Product	Version
	MailEnable	MailEnable	Affected: 0 , < 10.55 (semver)

Credits

Egidio Romano

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32851",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-23T19:45:55.318439Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-23T19:46:36.029Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "MailEnable",
          "vendor": "MailEnable",
          "versions": [
            {
              "lessThan": "10.55",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Egidio Romano"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "MailEnable versions prior to\u0026nbsp;10.55 contain a reflected cross-site scripting vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim\u0027s browser by crafting a malicious URL. Attackers can inject malicious code through the Attendees parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript."
            }
          ],
          "value": "MailEnable versions prior to\u00a010.55 contain a reflected cross-site scripting vulnerability in the webmail interface that allows remote attackers to execute arbitrary JavaScript in a victim\u0027s browser by crafting a malicious URL. Attackers can inject malicious code through the Attendees parameter in the FreeBusy.aspx form, which is not properly sanitized before being embedded into dynamically generated JavaScript."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-23T19:06:27.131Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.mailenable.com/rss/article.asp?Source=RSSADMIN\u0026ID=MAILENABLEVERSION1055"
        },
        {
          "tags": [
            "technical-description",
            "exploit"
          ],
          "url": "https://karmainsecurity.com/KIS-2026-05"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://mailenable.com/Standard-ReleaseNotes.txt"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.mailenable.com/"
        },
        {
          "url": "https://www.vulncheck.com/advisories/mailenable-reflected-xss-via-freebusy-aspx-attendees-parameter"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "MailEnable \u003c 10.55 Reflected XSS via FreeBusy.aspx Attendees Parameter",
      "x_generator": {
        "engine": "Vulnogram 1.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-32851",
    "datePublished": "2026-03-23T19:06:27.131Z",
    "dateReserved": "2026-03-16T18:11:41.759Z",
    "dateUpdated": "2026-03-23T19:46:36.029Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Action not permitted

GHSA-5FJM-C352-35CV

CVE-2026-32851 (GCVE-0-2026-32851)

Tags

Sightings

Nomenclature