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CVE-2023-40034— Repositoty takeover in woodpecker-ci

Quick assessment

Affected
woodpecker-ci woodpecker
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Woodpecker是Drone CI 系统的社区分支。 Woodpecker 1.0.0到1.0.2版本存在输入验证错误漏洞，攻击者利用该漏洞可以发布格式错误的 Webhook 数据，从而导致存储库数据更新。

CVSS 8.1 · High EPSS 0.88% · P59
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I. Basic Information for CVE-2023-40034

Vulnerability Information
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Vulnerability Title
Repositoty takeover in woodpecker-ci
Source: CVE Program / CVE List V5
Vulnerability Description
Woodpecker is a community fork of the Drone CI system. In affected versions an attacker can post malformed webhook data witch lead to an update of the repository data that can e.g. allow the takeover of an repo. This is only critical if the CI is configured for public usage and connected to a forge witch is also in public usage. This issue has been addressed in version 1.0.2. Users are advised to upgrade. Users unable to upgrade should secure the CI system by making it inaccessible to untrusted entities, for example, by placing it behind a firewall.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Woodpecker 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Woodpecker是Drone CI 系统的社区分支。 Woodpecker 1.0.0到1.0.2版本存在输入验证错误漏洞，攻击者利用该漏洞可以发布格式错误的 Webhook 数据，从而导致存储库数据更新。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
woodpecker-ci woodpecker >= 1.0.0, < 1.0.2 -

II. Public POCs for CVE-2023-40034

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8794 chars
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III. Intelligence Information for CVE-2023-40034

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Patches & Fixes for CVE-2023-40034 (3)

Vendor Advisories for CVE-2023-40034 (1)

IV. Related Vulnerabilities

Same product: woodpecker
Same vendor: woodpecker-ci
Same weakness: CWE-20