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VulnerabilityPublished

CVE-2026-66724: CERT.PL MWDB Core · Missing Authorization

Affects CERT.PL MWDB CoreSource CVE Database V5

0

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

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
CERT.PLMWDB CoreAffected
  • >=2.0.0 <2.19.0
Fixed in
  • 2.19.0
GitHubmwdb-corepkg:github/mwdb-coreOther threatsAffected
  • >=2.0.0 <2.19.0
Fixed in
  • 2.19.0

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

References

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