Vulnerability-Lookup

GHSA-V7C2-5WFC-RFFF

Vulnerability from github – Published: 2026-05-06 09:31 – Updated: 2026-05-06 09:31

Details

An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.

Severity ?

7.3 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23926"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T08:16:01Z",
    "severity": "HIGH"
  },
  "details": "An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.",
  "id": "GHSA-v7c2-5wfc-rfff",
  "modified": "2026-05-06T09:31:35Z",
  "published": "2026-05-06T09:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23926"
    },
    {
      "type": "WEB",
      "url": "https://support.zabbix.com/browse/ZBX-27758"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/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-2026-23926 (GCVE-0-2026-23926)

Vulnerability from cvelistv5 – Published: 2026-05-06 06:58 – Updated: 2026-05-06 12:59

Title

Stored XSS vulnerability in Host navigator widget maintenance tooltip

Summary

Severity ?

7.3 (High)


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

CWE

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

Assigner

Zabbix

References

URL

Tags

https://support.zabbix.com/browse/ZBX-27758

Impacted products

	Vendor	Product	Version
	Zabbix	Zabbix	Affected: 7.0.0 , ≤ 7.0.23 (git) Affected: 7.4.0 , ≤ 7.4.7 (git)

Credits

Zabbix wants to thank Daniel Santos (@bananabr) for submitting this report on the HackerOne bug bounty platform.

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JSON

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  "containers": {
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-23926",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T12:59:17.377406Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-06T12:59:26.878Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "modules": [
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          "vendor": "Zabbix",
          "versions": [
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                  "at": "7.0.24",
                  "status": "unaffected"
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              "status": "affected",
              "version": "7.0.0",
              "versionType": "git"
            },
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              "changes": [
                {
                  "at": "7.4.8",
                  "status": "unaffected"
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      ],
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      ],
      "impacts": [
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      ],
      "metrics": [
        {
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            "Recovery": "NOT_DEFINED",
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            }
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    "dateReserved": "2026-01-19T14:02:54.327Z",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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-V7C2-5WFC-RFFF

CVE-2026-23926 (GCVE-0-2026-23926)

Tags

Sightings

Nomenclature