{"cve":"CVE-2020-4035","nvd":{"published":"2020-06-03T17:15:26.153","modified":"2026-06-17T03:19:27.600","status":"Modified","description":"In WatermelonDB (NPM package \"@nozbe/watermelondb\") before versions 0.15.1 and 0.16.2, a maliciously crafted record ID can exploit a SQL Injection vulnerability in iOS adapter implementation and cause the app to delete all or selected records from the database, generally causing the app to become unusable. This may happen in apps that don't validate IDs (valid IDs are `/^[a-zA-Z0-9_-.]+$/`) and use Watermelon Sync or low-level `database.adapter.destroyDeletedRecords` method. The integrity risk is low due to the fact that maliciously deleted records won't synchronize, so logout-login will restore all data, although some local changes may be lost if the malicious deletion causes the sync process to fail to proceed to push stage. No way to breach confidentiality with this vulnerability is known. Full exploitation of SQL Injection is mitigated, because it's not possible to nest an insert/update query inside a delete query in SQLite, and it's not possible to pass a semicolon-separated second query. There's also no known practicable way to breach confidentiality by selectively deleting records, because those records will not be synchronized. It's theoretically possible that selective record deletion could cause an app to behave insecurely if lack of a record is used to make security decisions by the app. This is patched in versions 0.15.1, 0.16.2, and 0.16.1-fix","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H","score":5.9},"cwes":["CWE-89"],"references":["https://github.com/Nozbe/WatermelonDB/commit/924c7ae2a8d7d6459656751e5b9b1bf91a218025","https://github.com/Nozbe/WatermelonDB/security/advisories/GHSA-38f9-m297-6q9g","https://github.com/Nozbe/WatermelonDB/commit/924c7ae2a8d7d6459656751e5b9b1bf91a218025","https://github.com/Nozbe/WatermelonDB/security/advisories/GHSA-38f9-m297-6q9g"],"products":["nozbe:watermelondb"],"source":"nvd","synced_at":"2026-10-19T21:05:42.039641217+00:00"},"epss":{"cve":"CVE-2020-4035","score":0.00763,"percentile":0.554,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-38f9-m297-6q9g","url":"https://osv.dev/vulnerability/GHSA-38f9-m297-6q9g","summary":"DoS via malicious record IDs in WatermelonDB","modified":"2026-07-08T06:28:24.356642065Z","packages":[{"ecosystem":"npm","name":"@nozbe/watermelondb","purl":"pkg:npm/%40nozbe/watermelondb","ranges":["<0.15.1"],"fixed":["0.15.1"]},{"ecosystem":"npm","name":"@nozbe/watermelondb","purl":"pkg:npm/%40nozbe/watermelondb","ranges":[">=0.16.0 <0.16.2"],"fixed":["0.16.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}