CVE-2026-66724: CERT.PL MWDB Core · Missing Authorization
Affects CERT.PL MWDB CoreSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 2.19.0 when convenient.
Data as of 28 Oct 2026, 05:11 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.19.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade MWDB Core and mwdb-core to 2.19.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CERT.PLMWDB Core | Affected
| Fixed in
|
GitHubmwdb-corepkg:github/mwdb-coreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
This vulnerability is fixed in MWDB Core version 2.19.0. Users should upgrade to version 2.19.0 or later to remediate this issue. Patch status is not explicitly stated beyond the fix in 2.19.0, so verifying the upgrade with the vendor advisory is recommended.
Description
MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the deprecated config and blob upload endpoints. These endpoints accept the undocumented POST method, which bypasses the capability checks applied to the documented PUT method. This allows any authenticated user without the adding_configs or adding_blobs capabilities to upload config and text blob objects to the system. The impact is limited to adding new config and blob objects. This issue has been fixed in version 2.19.0