CVE-2023-5016Public exploitNetwork attack vector

Authenticated code execution via crafted JDBC URL

Published Sep 17, 2023 · Updated Aug 2, 2024

Deserialization in ssssssss-team Spider-Flow through 0.5.0 allows remote authenticated users to execute code via a crafted JDBC URL. DataSourceController passes attacker-controlled connection parameters to DriverManager.getConnection, exposing the bundled Fastjson JDBC deserialization path. Low-privilege access to the data-source API is sufficient, and successful exploitation runs code with the server process's permissions.

CVSS severity9.8
Critical
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Deserialization in ssssssss-team Spider-Flow through 0.5.0 allows remote authenticated users to execute code via a crafted JDBC URL. DataSourceController passes attacker-controlled connection parameters to DriverManager.getConnection, exposing the bundled Fastjson JDBC deserialization path. Low-privilege access to the data-source API is sufficient, and successful exploitation runs code with the server process's permissions.

The record

CVE
CVE-2023-5016
Published
Sep 17, 2023
Updated
Aug 2, 2024
Vendor
ssssssss-team
Product
Spider-Flow
Classifications
CWE-502, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0.1
  2. Affected versionversion=0.2
  3. Affected versionversion=0.3
  4. Affected versionversion=0.4
  5. Affected versionversion=0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ssssssss-team · Spider-Flowversion=0.1; version=0.2; version=0.3; version=0.4; version=0.5

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

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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