Vulnerability-Lookup

GHSA-XXC7-55P3-GXVW

Vulnerability from github – Published: 2026-10-16 00:31 – Updated: 2026-10-16 00:31

Details

Papermark through 0.22.0 contains a missing authorization vulnerability in the data room viewer group API that allows authenticated users to delete other teams' viewer groups and share links. Attackers who know a victim team's data room and group identifiers can send DELETE requests, read group links, or rewrite group document permissions across teams.

Severity

5.0 (Medium)


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

2.3 (Low)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-111350"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-15T22:19:32Z",
    "severity": "LOW"
  },
  "details": "Papermark through 0.22.0 contains a missing authorization vulnerability in the data room viewer group API that allows authenticated users to delete other teams\u0027 viewer groups and share links. Attackers who know a victim team\u0027s data room and group identifiers can send DELETE requests, read group links, or rewrite group document permissions across teams.",
  "id": "GHSA-xxc7-55p3-gxvw",
  "modified": "2026-10-16T00:31:57Z",
  "published": "2026-10-16T00:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111350"
    },
    {
      "type": "WEB",
      "url": "https://github.com/papermark/papermark/commit/7fa52b23944823a9e74402fca8e48d644239bc0b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/papermark/papermark/commit/b81cf62f390cda112f35538eb09e54b5f728b74a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/papermark/papermark"
    },
    {
      "type": "WEB",
      "url": "https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/index.ts#L155-L190"
    },
    {
      "type": "WEB",
      "url": "https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/links.ts#L52-L56"
    },
    {
      "type": "WEB",
      "url": "https://hackmd.io/@hieuPenguinnn/papermark-dataroom-group-delete-missing-authz"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/papermark-through-0.22.0-missing-authorization-in-data-room-viewer-group-api"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/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-2026-111350 (GCVE-0-2026-111350)

Vulnerability from cvelistv5 – Published: 2026-10-15 21:43 – Updated: 2026-10-15 21:43

Title

Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API

Summary

Severity

2.3 (Low)


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

5 (Medium)


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

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 6248 records in the last 180 days details

References

7 references

URL	Tags
https://hackmd.io/@hieuPenguinnn/papermark-dataro…	third-party-advisory
https://github.com/papermark/papermark/blob/v0.22…	technical-description
https://github.com/papermark/papermark/blob/v0.22…	technical-description
https://github.com/papermark/papermark/commit/b81…	patch
https://github.com/papermark/papermark/commit/7fa…	patch
https://github.com/papermark/papermark	product
https://www.vulncheck.com/advisories/papermark-th…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
papermark	Papermark	Affected: 0 , ≤ 0.22.0 (semver) cpe:2.3:a:papermark:papermark::::::::

Date Public

2026-10-15 00:00

Credits

hieuPenguinnn

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:github/papermark/papermark",
          "product": "Papermark",
          "repo": "https://github.com/papermark/papermark",
          "vendor": "papermark",
          "versions": [
            {
              "lessThanOrEqual": "0.22.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:papermark:papermark:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "0.22.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "hieuPenguinnn"
        }
      ],
      "datePublic": "2026-10-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Papermark through 0.22.0 contains a missing authorization vulnerability in the data room viewer group API that allows authenticated users to delete other teams\u0027 viewer groups and share links. Attackers who know a victim team\u0027s data room and group identifiers can send DELETE requests, read group links, or rewrite group document permissions across teams."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-15T21:43:40.792Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
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          ],
          "url": "https://hackmd.io/@hieuPenguinnn/papermark-dataroom-group-delete-missing-authz"
        },
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          "tags": [
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          ],
          "url": "https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/index.ts#L155-L190"
        },
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          "url": "https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/links.ts#L52-L56"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/papermark/papermark/commit/b81cf62f390cda112f35538eb09e54b5f728b74a"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/papermark/papermark/commit/7fa52b23944823a9e74402fca8e48d644239bc0b"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/papermark/papermark"
        },
        {
          "name": "VulnCheck Advisory: Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/papermark-through-0.22.0-missing-authorization-in-data-room-viewer-group-api"
        }
      ],
      "title": "Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-111350",
    "datePublished": "2026-10-15T21:43:40.792Z",
    "dateReserved": "2026-10-15T20:54:32.167Z",
    "dateUpdated": "2026-10-15T21:43:40.792Z",
    "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

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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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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.

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