Vulnerability-Lookup

FKIE_CVE-2026-23738

Vulnerability from fkie_nvd - Published: 2026-02-06 17:16 - Updated: 2026-02-18 18:42

Severity ?

3.5 (Low) - CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/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

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.

References

	URL	Tags
	security-advisories@github.com	https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh	Vendor Advisory

Impacted products

Vendor	Product	Version
sangoma	asterisk	*
sangoma	asterisk	*
sangoma	asterisk	*
sangoma	asterisk	*
sangoma	certified_asterisk	*
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7
sangoma	certified_asterisk	20.7

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "55FE60C1-D6E7-40DE-A1E3-C37A8ED13BAA",
              "versionEndIncluding": "20.18.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "842D5FCD-E7A1-45AF-BC46-7C6CB03AE88E",
              "versionEndIncluding": "21.12.1",
              "versionStartIncluding": "21.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F12BA0F4-535F-409E-B2AB-84B703707055",
              "versionEndIncluding": "22.8.2",
              "versionStartIncluding": "22.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B036D768-9ADA-4965-A596-BEF60749C3CD",
              "versionEndExcluding": "23.2.2",
              "versionStartIncluding": "23.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "44460225-C50D-414A-A2E0-F8280E1C1E1D",
              "versionEndIncluding": "18.9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:*",
              "matchCriteriaId": "79225576-AF7C-4099-9624-C53578A7417F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:*",
              "matchCriteriaId": "29323E6E-12C9-46C7-B29C-25E0CD537A8E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:*",
              "matchCriteriaId": "8E563972-78C0-40A0-83EA-6A3BA3D71946",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:*",
              "matchCriteriaId": "64209621-D458-432A-B0E3-C8D0B6698574",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:*",
              "matchCriteriaId": "B148158A-8354-41C2-A44C-2C0DAABAD217",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:*",
              "matchCriteriaId": "3D4D96E8-1F01-42B8-9181-67DEB12D9DD2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5:*:*:*:*:*:*",
              "matchCriteriaId": "50D1B02A-F5F9-48EB-A396-412821F5D602",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6:*:*:*:*:*:*",
              "matchCriteriaId": "4CBB2891-448F-4C4E-8A47-2283A8F71FE6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert7:*:*:*:*:*:*",
              "matchCriteriaId": "A9AF30E9-FC50-4A5C-BC99-9B3394488B9D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert8:*:*:*:*:*:*",
              "matchCriteriaId": "1A41366F-EA16-4867-A198-ACFFE5AFEA9A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2."
    }
  ],
  "id": "CVE-2026-23738",
  "lastModified": "2026-02-18T18:42:48.877",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-02-06T17:16:26.000",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

CVE-2026-23738 (GCVE-0-2026-23738)

Vulnerability from cvelistv5 – Published: 2026-02-06 16:41 – Updated: 2026-02-06 17:44

Title

The Asterisk embedded web server 's /httpstatus page echos user supplied values(cookie and query string) without sanitization

Summary

Severity ?

3.5 (Low)


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

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

URL

Tags

https://github.com/asterisk/asterisk/security/adv…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	asterisk	asterisk	Affected: < 23.2.2 Affected: < 22.8.2 Affected: < 21.12.1 Affected: < 20.18.2 Affected: < 20.7-cert9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23738",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-06T17:43:40.418371Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-06T17:44:20.480Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 23.2.2"
            },
            {
              "status": "affected",
              "version": "\u003c 22.8.2"
            },
            {
              "status": "affected",
              "version": "\u003c 21.12.1"
            },
            {
              "status": "affected",
              "version": "\u003c 20.18.2"
            },
            {
              "status": "affected",
              "version": "\u003c 20.7-cert9"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "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": "2026-02-06T16:41:43.769Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh"
        }
      ],
      "source": {
        "advisory": "GHSA-v6hp-wh3r-cwxh",
        "discovery": "UNKNOWN"
      },
      "title": "The Asterisk embedded web server \u0027s /httpstatus page echos user supplied values(cookie and query string) without sanitization"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-23738",
    "datePublished": "2026-02-06T16:41:43.769Z",
    "dateReserved": "2026-01-15T15:45:01.957Z",
    "dateUpdated": "2026-02-06T17:44:20.480Z",
    "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

FKIE_CVE-2026-23738

CVE-2026-23738 (GCVE-0-2026-23738)

Tags

Sightings

Nomenclature