CVE-2018-12678

highpriority · track · 40EPSS 0.023 · 83 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.31% (83rd) EPSS

CVSS 7.5 · high

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Portainer before 1.18.0 supports unauthenticated requests to the websocket endpoint with an unvalidated id query parameter for the /websocket/exec endpoint, which allows remote attackers to bypass intended access restrictions or conduct SSRF attacks.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-918USprimary

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
portainer portainer< 1.18.0nvdUScpe:2.3:a:portainer:portainer:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-06-22modified 2026-06-17

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+4179 more

references (6)

External citations — patches, advisories, analysis.

https://github.com/portainer/portainer/pull/1979 cnnvd
https://github.com/portainer/portainer/releases/tag/1.18.0 cnnvd
https://github.com/portainer/portainer/pull/1979 enisa_euvd
https://github.com/portainer/portainer/releases/tag/1.18.0 enisa_euvd
https://github.com/portainer/portainer/pull/1979Issue TrackingPatchThird Party Advisorynvd
https://github.com/portainer/portainer/releases/tag/1.18.0Issue TrackingThird Party Advisorynvd

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