Vulnerability-Lookup

GHSA-H7MP-QF49-HGPH

Vulnerability from github – Published: 2025-12-15 21:30 – Updated: 2025-12-15 21:30

Details

SyncBreeze 15.2.24 contains a denial of service vulnerability in the login authentication mechanism that allows attackers to crash the service. Attackers can send an oversized password parameter with repeated 'password=' values to overwhelm the login endpoint and potentially disrupt service availability.

Severity

8.7 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53873"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-15T21:15:49Z",
    "severity": "HIGH"
  },
  "details": "SyncBreeze 15.2.24 contains a denial of service vulnerability in the login authentication mechanism that allows attackers to crash the service. Attackers can send an oversized password parameter with repeated \u0027password=\u0027 values to overwhelm the login endpoint and potentially disrupt service availability.",
  "id": "GHSA-h7mp-qf49-hgph",
  "modified": "2025-12-15T21:30:32Z",
  "published": "2025-12-15T21:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53873"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/51725"
    },
    {
      "type": "WEB",
      "url": "https://www.syncbreeze.com"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/syncbreeze-denial-of-service-via-login-endpoint-overflow"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-2023-53873 (GCVE-0-2023-53873)

Vulnerability from cvelistv5 – Published: 2025-12-15 20:28 – Updated: 2026-04-07 14:06

Title

SyncBreeze 15.2.24 Denial of Service via Login Endpoint Overflow

Summary

Severity

8.7 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-15 21:41 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://www.exploit-db.com/exploits/51725	exploit
https://www.syncbreeze.com/	product
https://www.vulncheck.com/advisories/syncbreeze-d…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Syncbreeze	SyncBreeze	Affected: 15.2.24 cpe:2.3:a:flexense:syncbreeze:15.2.24:::::::*

Date Public

2023-09-08 00:00

Credits

mohamed youssef

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-53873",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-15T21:41:03.786686Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2025-12-15T21:48:06.462Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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            "Recovery": "NOT_DEFINED",
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    "dateReserved": "2025-12-13T14:25:04.998Z",
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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.

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.

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GHSA-H7MP-QF49-HGPH

CVE-2023-53873 (GCVE-0-2023-53873)

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Sightings

Nomenclature

Related by attack behaviour