{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-103311 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-103311 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103311 is a medium-severity vulnerability in Unknown Coinbase Commerce Payment Gateway for WooCommerce, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-103311 and fix it if it is affected.\n\nWhat it is: CVE-2026-103311 is a medium-severity vulnerability in Unknown Coinbase Commerce Payment Gateway for WooCommerce, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-103311 in the wild and no public exploit code.\n\nAffected product: Unknown Coinbase Commerce Payment Gateway for WooCommerce. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-103311/ (Markdown: https://insights.sbomify.com/CVE-2026-103311/index.md)","id":"CVE-2026-103311","markdown":"https://insights.sbomify.com/CVE-2026-103311/index.md","name":"CVE-2026-103311","record":{"aliases":["GHSA-cx3h-5fq4-rp7v"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"WooCommerce payment plugin","requires_auth":"none","summary":"Unauthenticated attackers can forge payment webhooks to mark orders as paid or cancel them due to missing signature validation with an empty default secret.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"The Coinbase Commerce Payment Gateway for WooCommerce WordPress plugin through 1.4.1 does not verify the authenticity of incoming payment webhook notifications, because the shared secret used to validate the request signature is empty by default and nothing rejects an unconfigured secret, allowing unauthenticated attackers to forge notifications that mark arbitrary orders as paid or cancel already-paid orders.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Security feature bypass in Coinbase Commerce Payment Gateway for WooCommerce","id":"CVE-2026-103311","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Payment Integration Wompi \u003c= 4.0.1 - Unauthenticated Payment Confirmation Forgery via IPN Callback","id":"CVE-2026-103312"},"packages":[],"prev":{"headline":"GPTranslate \u003c 2.34.14 - Unauthenticated Stored XSS via REST API Translation Storage","id":"CVE-2026-103309"},"products":["Coinbase Commerce Payment Gateway for WooCommerce"],"published":"2026-10-19","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Unknown"]},"summary":"Unauthenticated attackers can forge payment webhooks to mark orders as paid or cancel them due to missing signature validation with an empty default secret.","url":"https://insights.sbomify.com/CVE-2026-103311/"}