CVE-2020-4035Public exploitNetwork attack vector

Local record deletion via interpolated record IDs

Published Jun 3, 2020 · Updated Aug 4, 2024

SQL injection in WatermelonDB before 0.15.1 and 0.16.0 through 0.16.1 allows attackers to delete local iOS database records. The iOS DatabaseDriver.destroyDeletedRecords method interpolates each record ID into a DELETE IN clause instead of binding it as a parameter. Reachability requires an app that accepts invalid record IDs and uses Watermelon Sync or calls destroyDeletedRecords directly; crafted IDs can delete selected or all local records and interrupt app use.

CVSS severity5.9
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in WatermelonDB before 0.15.1 and 0.16.0 through 0.16.1 allows attackers to delete local iOS database records. The iOS DatabaseDriver.destroyDeletedRecords method interpolates each record ID into a DELETE IN clause instead of binding it as a parameter. Reachability requires an app that accepts invalid record IDs and uses Watermelon Sync or calls destroyDeletedRecords directly; crafted IDs can delete selected or all local records and interrupt app use.

The record

CVE
CVE-2020-4035
Published
Jun 3, 2020
Updated
Aug 4, 2024
Vendor
Nozbe
Product
WatermelonDB
Classifications
CWE-89, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.15.1
  2. Affected versionversion=>= 0.16.0, < 0.16.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nozbe · WatermelonDBversion=< 0.15.1; version=>= 0.16.0, < 0.16.2

Published CVSS scores

5.5NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:P
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
5.9GitHubCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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