CVE-2023-41387Public exploitNetwork attack vector

Token theft and file overwrite via SQL injection

Published Sep 19, 2023 · Updated Sep 25, 2024

SQL injection in Flutter Community Flutter Downloader 1.11.1 and earlier for iOS allows remote attackers to steal tokens and overwrite files. The iOS updateTask method interpolates a server-controlled suggested filename into an SQLite UPDATE statement, letting injected SQL alter stored task URLs and paths. A target app must start a download from an attacker-controlled server; local users gain the same primitives when two iOS file-sharing properties expose the task database.

CVSS severity9.1
Critical
EPSS probability0.65%
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 Flutter Community Flutter Downloader 1.11.1 and earlier for iOS allows remote attackers to steal tokens and overwrite files. The iOS updateTask method interpolates a server-controlled suggested filename into an SQLite UPDATE statement, letting injected SQL alter stored task URLs and paths. A target app must start a download from an attacker-controlled server; local users gain the same primitives when two iOS file-sharing properties expose the task database.

The record

CVE
CVE-2023-41387
Published
Sep 19, 2023
Updated
Sep 25, 2024
Vendor
Flutter Community
Product
Flutter Downloader
Classifications
CWE-89, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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 <=1.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Flutter Community · Flutter Downloaderversion=0 <=1.11.1

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
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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