OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2

{
  "id": "f010f74e90928eb31b65b8870e5ca4899ef8e8e2c6853464e0dcde955497e1be",
  "url": "https://osv.dev/vulnerability/CVE-2026-29782",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2",
    "summary": "OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, the oauth2.php file in OpenSTAManager is an unauthenticated endpoint ($skip_permissions = true). It loads a record from the zz_oauth2 table using the attacker-controlled GET parameter state, and during the OAuth2 configuration flow calls unserialize() on the access_token field without any class restriction. This issue has been patched in version 2.10.2.",
    "evidence": "osv:CVE-2026-29782",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-29782",
      "aliases": [
        "CVE-2026-29782",
        "GHSA-whv5-4q2f-q68g"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/devcode-it/openstamanager",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7c245094972386850964d5216ad28e8160ae1e53"
                },
                {
                  "fixed": "d2e38cbdf91a831cefc0da1548e02b297ae644cc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:devcode:openstamanager:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.10.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d2e38cbdf91a831cefc0da1548e02b297ae644cc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "7c245094972386850964d5216ad28e8160ae1e53"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.10.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.10.1",
            "v2.10-beta",
            "v2.9.1",
            "v2.6.2",
            "v2.6.1",
            "v2.5.5",
            "v2.5.4",
            "v2.5.3",
            "v2.5.2-beta",
            "v2.5.1-beta",
            "v2.5",
            "v2.4.54",
            "v2.4.53",
            "v2.4.51",
            "v2.4.49",
            "v2.4.47",
            "v2.4.44",
            "v2.4.43",
            "v2.4.42",
            "v2.4.41",
            "v2.4.40",
            "v2.4.38",
            "v2.4.32",
            "v2.4.28",
            "v2.4.25",
            "v2.4.24",
            "v2.4.23",
            "v2.4.22",
            "v2.4.20",
            "v2.4.17",
            "v2.4.16",
            "v2.4.14",
            "v2.4.13",
            "v2.4.12",
            "v2.4.11",
            "v2.4.10",
            "v2.4.9",
            "v2.4.8",
            "v2.4.6",
            "v2.4.4",
            "v2.4.3",
            "v2.4.2",
            "v2.4",
            "v2.3-beta.2",
            "v2.3-beta.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29782.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.084271274Z",
      "provider": "osv",
      "references": [
        "https://github.com/devcode-it/openstamanager/releases/tag/v2.10.2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29782.json",
        "https://github.com/devcode-it/openstamanager/security/advisories/GHSA-whv5-4q2f-q68g",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-29782",
        "https://github.com/devcode-it/openstamanager/commit/d2e38cbdf91a831cefc0da1548e02b297ae644cc"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-502"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29782.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-29782",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 515949,
  "published_at": "2026-04-02T13:42:25.134+00:00"
}