{"cve":"CVE-2023-41327","nvd":{"published":"2023-09-06T21:15:14.323","modified":"2026-06-17T06:21:47.963","status":"Modified","description":"WireMock is a tool for mocking HTTP services. WireMock can be configured to only permit proxying (and therefore recording) to certain addresses. This is achieved via a list of allowed address rules and a list of denied address rules, where the allowed list is evaluated first. \n\nUntil WireMock Webhooks Extension 3.0.0-beta-15, the filtering of target addresses from the proxy mode DID NOT work for Webhooks, so the users were potentially vulnerable regardless of the `limitProxyTargets` settings. Via the WireMock webhooks configuration, POST requests from a webhook might be forwarded to an arbitrary service reachable from WireMock’s instance. For example, If someone is running the WireMock docker Container inside a private cluster, they can trigger internal POST requests against unsecured APIs or even against secure ones by passing a token, discovered using another exploit, via authentication headers. This issue has been addressed in versions 2.35.1 and 3.0.3 of wiremock. Wiremock studio has been discontinued and will not see a fix. Users unable to upgrade should use external firewall rules to define the list of permitted destinations.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","score":5.4},"cwes":["CWE-918"],"references":["https://github.com/wiremock/wiremock/releases/tag/3.0.0-beta-15","https://github.com/wiremock/wiremock/security/advisories/GHSA-hq8w-9w8w-pmx7","https://wiremock.org/docs/configuration/#preventing-proxying-to-and-recording-from-specific-target-addresses","https://github.com/wiremock/wiremock/releases/tag/3.0.0-beta-15","https://github.com/wiremock/wiremock/security/advisories/GHSA-hq8w-9w8w-pmx7"],"products":["wiremock:studio","wiremock:wiremock"],"source":"nvd","synced_at":"2026-10-19T21:39:24.235896374+00:00"},"epss":{"cve":"CVE-2023-41327","score":0.00498,"percentile":0.42697,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hq8w-9w8w-pmx7","url":"https://osv.dev/vulnerability/GHSA-hq8w-9w8w-pmx7","summary":"WireMock Controlled Server Side Request Forgery vulnerability through URL","modified":"2026-04-13T17:24:55.139401837Z","packages":[{"ecosystem":"Maven","name":"org.wiremock:wiremock-webhooks-extension","purl":"pkg:maven/org.wiremock/wiremock-webhooks-extension","ranges":[">=3.0.0 <3.0.3"],"fixed":["3.0.3"]},{"ecosystem":"Maven","name":"org.wiremock:wiremock-webhooks-extension","purl":"pkg:maven/org.wiremock/wiremock-webhooks-extension","ranges":[">=2.0.0 <2.35.1"],"fixed":["2.35.1"]}]}],"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."]}