High 8.8Published Aug 28, 2026

CVE-2026-55509WsgiDAV: Blind SQL injection in the MySQL provider

Updated under an hour ago (2026-10-19 09:10 UTC)

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Exploited in the last 30 days

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: 8.8 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

mar10 wsgidav mar10:wsgidav (from the name)	before 4.3.5	CNA record

References

https://github.com/mar10/wsgidav/security/advisories/GHSA-p6gw-4frg-j7jwx-refsource-confirm
https://github.com/mar10/wsgidav/commit/6f35776c9188f130ab044ce557015d51aaa83500x-refsource-misc
https://github.com/mar10/wsgidav/blob/master/CHANGELOG.md#435--2026-06-27x-refsource-misc
https://github.com/mar10/wsgidav/releases/tag/v4.3.5x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.