{"cve":"CVE-2023-40034","nvd":{"published":"2023-08-16T21:15:10.087","modified":"2026-06-17T06:15:51.620","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-20"],"references":["https://github.com/woodpecker-ci/woodpecker/commit/6e4c2f84cc84661d58cf1c0e5c421a46070bb105","https://github.com/woodpecker-ci/woodpecker/pull/2221","https://github.com/woodpecker-ci/woodpecker/pull/2222","https://github.com/woodpecker-ci/woodpecker/security/advisories/GHSA-4gcf-5m39-98mc","https://github.com/woodpecker-ci/woodpecker/commit/6e4c2f84cc84661d58cf1c0e5c421a46070bb105"],"products":["woodpecker-ci:woodpecker"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-40034","score":0.00883,"percentile":0.5921,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4gcf-5m39-98mc","url":"https://osv.dev/vulnerability/GHSA-4gcf-5m39-98mc","summary":"Woodpecker does not validate webhook before changing any data","modified":"2026-09-10T03:49:57.379318861Z","packages":[{"ecosystem":"Go","name":"github.com/woodpecker-ci/woodpecker","purl":"pkg:golang/github.com/woodpecker-ci/woodpecker","ranges":[">=1.0.0 <1.0.2"],"fixed":["1.0.2"]}]},{"id":"GO-2023-2014","url":"https://osv.dev/vulnerability/GO-2023-2014","summary":"Woodpecker does not validate webhook before changing any data in github.com/woodpecker-ci/woodpecker","modified":"2026-03-03T04:54:07.597383Z","packages":[{"ecosystem":"Go","name":"github.com/woodpecker-ci/woodpecker","purl":"pkg:golang/github.com/woodpecker-ci/woodpecker","ranges":[">=1.0.0 <1.0.2"],"fixed":["1.0.2"]}]}],"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."]}