Vulnerability-Lookup

GHSA-8XG9-C63W-VFJ6

Vulnerability from github – Published: 2026-06-01 06:30 – Updated: 2026-06-01 06:30

Details

This issue affects OTRS:

7.0.X
8.0.X
2023.X
2024.X
2025.X
2026.X before 2026.4.X

Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected

Severity

6.5 (Medium)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-48208"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-01T04:16:23Z",
    "severity": "MODERATE"
  },
  "details": "An improper neutralization of active SVG content in OTRS or ((OTRS)) Community Edition ticket article rendering allows attackers to inject specially crafted SVG payloads via email content, leading to browser-side resource exhaustion and denial of service when affected tickets are opened by an agent or customer. The issue can be exploited without JavaScript execution and is not mitigated by the configured Content Security Policy (CSP).\n\nThis issue affects OTRS:\n\n  *  7.0.X\n  *  8.0.X\n  *  2023.X\n  *  2024.X\n  *  2025.X\n  *  2026.X before 2026.4.X\n\nPlease note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected",
  "id": "GHSA-8xg9-c63w-vfj6",
  "modified": "2026-06-01T06:30:26Z",
  "published": "2026-06-01T06:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48208"
    },
    {
      "type": "WEB",
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2026-07"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-48208 (GCVE-0-2026-48208)

Vulnerability from cvelistv5 – Published: 2026-06-01 03:32 – Updated: 2026-06-01 13:19

Title

Denial-of-Service via SVG Rendering in Ticket

Summary

An improper neutralization of active SVG content in OTRS or ((OTRS)) Community Edition ticket article rendering allows attackers to inject specially crafted SVG payloads via email content, leading to browser-side resource exhaustion and denial of service when affected tickets are opened by an agent or customer. The issue can be exploited without JavaScript execution and is not mitigated by the configured Content Security Policy (CSP). This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-01 13:19 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-791 - Incomplete Filtering of Special Elements

Assigner

OTRS CNA under the mitre root

CNA scorecard B 75/100 over 17 records in the last 180 days details

References

1 reference

URL	Tags
https://otrs.com/release-notes/otrs-security-advi…

Impacted products

2 products

Vendor	Product	Version
OTRS AG	OTRS	Affected: 7.0.x Affected: 8.0.x Affected: 2023.x Affected: 2024.x Affected: 2025.x Affected: 2026.x , ≤ 2026.3.x (patch)
OTRS AG	((OTRS)) Community Edition	Affected: 6.x

Date Public

2026-06-01 07:00

Credits

Special thanks to Daniel Triznafor reporting this vulnerability

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-48208",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-01T13:19:13.837405Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-01T13:19:22.939Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "modules": [
            "Agent Frontend",
            "External Interface"
          ],
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          "vendor": "OTRS AG",
          "versions": [
            {
              "status": "affected",
              "version": "7.0.x"
            },
            {
              "status": "affected",
              "version": "8.0.x"
            },
            {
              "status": "affected",
              "version": "2023.x"
            },
            {
              "status": "affected",
              "version": "2024.x"
            },
            {
              "status": "affected",
              "version": "2025.x"
            },
            {
              "lessThanOrEqual": "2026.3.x",
              "status": "affected",
              "version": "2026.x",
              "versionType": "patch"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "modules": [
            "Agent Frontend",
            "External Interface"
          ],
          "product": "((OTRS)) Community Edition",
          "vendor": "OTRS AG",
          "versions": [
            {
              "status": "affected",
              "version": "6.x"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Special thanks to Daniel Triznafor reporting this vulnerability"
        }
      ],
      "datePublic": "2026-06-01T07:00:00.000Z",
      "descriptions": [
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          "supportingMedia": [
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              "type": "text/html",
              "value": "\u003cp\u003eAn improper neutralization of active SVG content in OTRS or ((OTRS)) Community Edition ticket article rendering allows attackers to inject specially crafted SVG payloads via email content, leading to browser-side resource exhaustion and denial of service when affected tickets are opened by an agent or customer. The issue can be exploited without JavaScript execution and is not mitigated by the configured Content Security Policy (CSP).\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eThis issue affects OTRS:\u003c/p\u003e\u003cul\u003e\u003cli\u003e7.0.X\u003c/li\u003e\u003cli\u003e8.0.X\u003c/li\u003e\u003cli\u003e2023.X\u003c/li\u003e\u003cli\u003e2024.X\u003c/li\u003e\u003cli\u003e2025.X\u003c/li\u003e\u003cli\u003e2026.X before 2026.4.X\u003c/li\u003e\u003c/ul\u003ePlease note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected\u003cp\u003e\u003c/p\u003e"
            }
          ],
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        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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            "version": "3.1"
          },
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          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-791",
              "description": "CWE-791 Incomplete Filtering of Special Elements",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T03:32:38.926Z",
        "orgId": "2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8",
        "shortName": "OTRS"
      },
      "references": [
        {
          "url": "https://otrs.com/release-notes/otrs-security-advisory-2026-07/"
        }
      ],
      "solutions": [
        {
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          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches\u003cbr\u003e"
            }
          ],
          "value": "Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches"
        }
      ],
      "source": {
        "advisory": "OSA-2026-07",
        "defect": [
          "Ticket#2026052110000251",
          "Issue#4802"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Denial-of-Service via SVG Rendering in Ticket",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8",
    "assignerShortName": "OTRS",
    "cveId": "CVE-2026-48208",
    "datePublished": "2026-06-01T03:32:38.926Z",
    "dateReserved": "2026-05-21T12:12:49.645Z",
    "dateUpdated": "2026-06-01T13:19:22.939Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
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