{"cve":"CVE-2026-55509","nvd":{"published":"2026-08-28T20:18:27.810","modified":"2026-09-09T21:09:13.080","status":"Deferred","description":"WsgiDAV is a generic and extendable WebDAV server based on WSGI. Prior to 4.3.5, the sample MySQLBrowserProvider in wsgidav/samples/mysql_dav_provider.py concatenates the record key parsed from a request URL directly into SQL WHERE clauses. The affected _exists_record_by_primary_key, _get_field_by_primary_key, and _get_record_by_primary_key methods are part of a shipped example provider that is not enabled by default. An attacker who can access a share explicitly configured with this non-default provider can inject SQL through a normal GET request; anonymously exposed read shares permit a status-code oracle and extraction of arbitrary data reachable by the configured MySQL account. This issue is fixed in version 4.3.5.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":8.8},"cvss_v3":null,"cwes":["CWE-89"],"references":["https://github.com/mar10/wsgidav/blob/master/CHANGELOG.md#435--2026-06-27","https://github.com/mar10/wsgidav/commit/6f35776c9188f130ab044ce557015d51aaa83500","https://github.com/mar10/wsgidav/releases/tag/v4.3.5","https://github.com/mar10/wsgidav/security/advisories/GHSA-p6gw-4frg-j7jw","https://github.com/mar10/wsgidav/security/advisories/GHSA-p6gw-4frg-j7jw"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-55509","score":0.00506,"percentile":0.43209,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-p6gw-4frg-j7jw","url":"https://osv.dev/vulnerability/GHSA-p6gw-4frg-j7jw","summary":"WsgiDAV MySQL provider has a blind SQL injection","modified":"2026-09-10T12:26:08.820088471Z","packages":[{"ecosystem":"PyPI","name":"wsgidav","purl":"pkg:pypi/wsgidav","ranges":["<4.3.5"],"fixed":["4.3.5"]}]},{"id":"PYSEC-2026-3945","url":"https://osv.dev/vulnerability/PYSEC-2026-3945","summary":"WsgiDAV MySQL provider has a blind SQL injection","modified":"2026-09-10T12:15:13.209811540Z","packages":[{"ecosystem":"PyPI","name":"wsgidav","purl":"pkg:pypi/wsgidav","ranges":["<4.3.5"],"fixed":["4.3.5"]}]}],"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."]}