Vulnerability-Lookup

FKIE_CVE-2026-23929

Vulnerability from fkie_nvd - Published: 2026-08-18 13:17 - Updated: 2026-09-08 15:10

Severity

5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like __proto__, combined with jQuery's unsafe element creation that traversed the prototype chain.

References

	URL	Tags
	security@zabbix.com	https://support.zabbix.com/browse/ZBX-28068	Vendor Advisory

Impacted products

Vendor	Product	Version
zabbix	zabbix	*
zabbix	zabbix	*
zabbix	zabbix	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "Frontend"
          ],
          "product": "Zabbix",
          "repo": "https://git.zabbix.com/",
          "vendor": "Zabbix",
          "versions": [
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                  "status": "unaffected"
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              "status": "affected",
              "version": "6.0.44",
              "versionType": "git"
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              "status": "affected",
              "version": "7.0.22",
              "versionType": "git"
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              "changes": [
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                  "at": "7.4.9",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "7.4.8",
              "status": "affected",
              "version": "7.4.6",
              "versionType": "git"
            }
          ]
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      "source": "security@zabbix.com"
    }
  ],
  "configurations": [
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    }
  ],
  "id": "CVE-2026-23929",
  "lastModified": "2026-09-08T15:10:20.633",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 5.4,
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          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
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        "type": "Primary"
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          "availabilityRequirement": "NOT_DEFINED",
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          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
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          "timestamp": "2026-08-18T00:00:00+00:00",
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      "url": "https://support.zabbix.com/browse/ZBX-28068"
    }
  ],
  "sourceIdentifier": "security@zabbix.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "security@zabbix.com",
      "type": "Secondary"
    }
  ]
}

CVE-2026-23929 (GCVE-0-2026-23929)

Vulnerability from cvelistv5 – Published: 2026-08-18 12:16 – Updated: 2026-08-19 03:55

Title

Prototype pollution leading to stored XSS

Summary

Severity

8.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 00:00 UTC

CWE

CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ("Prototype Pollution")

Assigner

Zabbix mitre root

References

1 reference

URL	Tags
https://support.zabbix.com/browse/ZBX-28068

Impacted products

1 product

Vendor	Product	Version
Zabbix	Zabbix	Affected: 6.0.44 , ≤ 6.0.45 (git) Affected: 7.0.22 , ≤ 7.0.24 (git) Affected: 7.4.6 , ≤ 7.4.8 (git)

Credits

Zabbix wants to thank Perce, 6o_o9 and Nassim BETTACH @Shenron for submitting this report on the HackerOne bug bounty platform.

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-23929",
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                  },
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                "timestamp": "2026-08-18T00:00:00+00:00",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "modules": [
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.