CVSS 4.0
8.8 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-55509
High (8.8). EPSS 0.5% chance of exploitation in the next 30 days. Fixed in wsgidav 4.3.5.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
- CWE
- CWE-89
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p6gw-4frg-j7jw | PyPI | wsgidav | <4.3.5 | 4.3.5 |
| PYSEC-2026-3945 | PyPI | wsgidav | <4.3.5 | 4.3.5 |
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