Vulnerability-Lookup

GHSA-8WHF-JVMP-GHV3

Vulnerability from github – Published: 2026-10-30 18:32 – Updated: 2026-10-30 18:32

Details

RTIR's ticket creation forms show the subject of the related ticket when splitting a ticket or creating an incident from a report, and they render that subject without HTML escaping. A ticket subject containing script runs it when a user opens either form. RTIR grants everyone the right to create Incident Reports by default, so an unauthenticated sender of an emailed report can set that subject. The script then runs in the session of the incident handler who creates an incident from the report or splits it, and can act in RT with that user's authority.

The issue was fixed in version 6.0.4. RTIR 5.0 is not affected.

Severity

5.3 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-105455"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-30T16:17:37Z",
    "severity": "MODERATE"
  },
  "details": "RTIR\u0027s ticket creation forms show the subject of the related\n      ticket when splitting a ticket or creating an incident from a\n      report, and they render that subject without HTML escaping. A\n      ticket subject containing script runs it when a user opens either\n      form. RTIR grants everyone the right to create Incident Reports by\n      default, so an unauthenticated sender of an emailed report can set\n      that subject. The script then runs in the session of the incident\n      handler who creates an incident from the report or splits it, and\n      can act in RT with that user\u0027s authority.\u00a0\n\n\nThe issue was fixed in version 6.0.4. RTIR 5.0 is not\n      affected.",
  "id": "GHSA-8whf-jvmp-ghv3",
  "modified": "2026-10-30T18:32:37Z",
  "published": "2026-10-30T18:32:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105455"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454"
    },
    {
      "type": "WEB",
      "url": "https://requesttracker.com/rtir"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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-2026-105455 (GCVE-0-2026-105455)

Vulnerability from cvelistv5 – Published: 2026-10-30 15:34 – Updated: 2026-10-30 17:18 X_Open Source

Title

Stored XSS via related ticket subject on RTIR Split and Create Incident forms

Summary

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-30 17:05 UTC

CWE

CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')

Assigner

CERT-PL CNA under the ENISA root

CNA scorecard B 81/100 over 256 records in the last 180 days details

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-105454	third-party-advisory
https://requesttracker.com/rtir/	product

Impacted products

1 product

Vendor	Product	Version
Best Practical Solutions	RT for Incident Response	Affected: 6.0.0 , < 6.0.4 (semver) cpe:2.3:a:best_practical_solutions:rt_for_incident_response::::::::

Credits

Mateusz Szymaniec (CERT.PL)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105455",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-30T17:05:42.052215Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-30T17:18:22.098Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "RT for Incident Response",
          "repo": "https://github.com/bestpractical/rtir",
          "vendor": "Best Practical Solutions",
          "versions": [
            {
              "lessThan": "6.0.4",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:best_practical_solutions:rt_for_incident_response:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.4",
                  "versionStartIncluding": "6.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mateusz Szymaniec (CERT.PL)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "RTIR\u0027s ticket creation forms show the subject of the related\n      ticket when splitting a ticket or creating an incident from a\n      report, and they render that subject without HTML escaping. A\n      ticket subject containing script runs it when a user opens either\n      form. RTIR grants everyone the right to create Incident Reports by\n      default, so an unauthenticated sender of an emailed report can set\n      that subject. The script then runs in the session of the incident\n      handler who creates an incident from the report or splits it, and\n      can act in RT with that user\u0027s authority.\u0026nbsp;\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThe issue was fixed in version 6.0.4. RTIR 5.0 is not\n      affected.\u003c/div\u003e"
            }
          ],
          "value": "RTIR\u0027s ticket creation forms show the subject of the related\n      ticket when splitting a ticket or creating an incident from a\n      report, and they render that subject without HTML escaping. A\n      ticket subject containing script runs it when a user opens either\n      form. RTIR grants everyone the right to create Incident Reports by\n      default, so an unauthenticated sender of an emailed report can set\n      that subject. The script then runs in the session of the incident\n      handler who creates an incident from the report or splits it, and\n      can act in RT with that user\u0027s authority.\u00a0\n\n\nThe issue was fixed in version 6.0.4. RTIR 5.0 is not\n      affected."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-592",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-592 Stored XSS"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-79",
              "description": "CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T15:34:49.001Z",
        "orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "shortName": "CERT-PL"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://cert.pl/en/posts/2026/10/CVE-2026-105454"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://requesttracker.com/rtir/"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "tags": [
        "x_open-source"
      ],
      "title": "Stored XSS via related ticket subject on RTIR Split and Create Incident forms",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
    "assignerShortName": "CERT-PL",
    "cveId": "CVE-2026-105455",
    "datePublished": "2026-10-30T15:34:49.001Z",
    "dateReserved": "2026-10-05T14:00:11.458Z",
    "dateUpdated": "2026-10-30T17:18:22.098Z",
    "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.

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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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