How severe is CVE-2020-35190?

CVE-2020-35190 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-35190 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35190?

CVE-2020-35190 affects Plone. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-35190?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-35190 published?

CVE-2020-35190 was published on 2020-12-17 and last updated on 2026-06-17.

CVE-2020-35190

CVE-2020-35190 is a critical-severity vulnerability in Plone with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Plone
Published: 2020-12-17
Last modified: 2026-06-17

Description

The official plone Docker images before version of 4.3.18-alpine (Alpine specific) contain a blank password for a root user. System using the plone docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.

Frequently asked questions

What is CVE-2020-35190?: The official plone Docker images before version of 4.3.18-alpine (Alpine specific) contain a blank password for a root user. System using the plone docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.
How severe is CVE-2020-35190?: CVE-2020-35190 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-35190 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35190?: CVE-2020-35190 affects Plone. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-35190?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-35190 published?: CVE-2020-35190 was published on 2020-12-17 and last updated on 2026-06-17.

References

https://github.com/koharin/koharin2/blob/main/CVE-2020-35190

Affected products (1)

cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:*

More vulnerabilities in Plone

CVE-2021-33509 — Critical (CVSS 9.9): Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the…
CVE-2020-7941 — Critical (CVSS 9.8): A privilege escalation issue in plone.app.contenttypes in Plone 4.3 through 5.2.1 allows users to PUT (overwrite) some…
CVE-2011-4030 — Critical (CVSS 9.3): The CMFEditions component 2.x in Plone 4.0.x through 4.0.9, 4.1, and 4.2 through 4.2a2 does not prevent the…
CVE-2011-3587 — Critical (CVSS 9.3): Unspecified vulnerability in Zope 2.12.x and 2.13.x, as used in Plone 4.0.x through 4.0.9, 4.1, and 4.2 through 4.2a2,…
CVE-2021-33926 — High (CVSS 8.8): An issue in Plone CMS v. 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1rc2, 5.1rc1, 5.1b4, 5.1b3, 5.1b2, 5.1a2, 5.1a1, 5.1.7,…
CVE-2020-28736 — High (CVSS 8.8): Plone before 5.2.3 allows XXE attacks via a feature that is protected by an unapplied permission of…

All CVEs affecting Plone →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-63692 — Critical (CVSS 10.0): Dell Container Storage Modules, versions prior to 1.18.0, contain(s) a Missing Authentication for Critical Function…
CVE-2026-63688 — Critical (CVSS 10.0): Dell Container Storage Modules (CSM), versions prior to v1.18.0, contains a Missing Authentication for Critical…
CVE-2026-103956 — Critical (CVSS 10.0): Missing authentication for critical function in the authentication dependency in Loom for AWS before 1.6.1 allowed…
CVE-2026-53988 — Critical (CVSS 10.0): Dockhand before 1.0.40 contains an authentication bypass vulnerability in its git webhook endpoints that allows…
CVE-2026-85889 — Critical (CVSS 10.0): Missing authentication for critical function in Azure AI Foundry allows an unauthorized attacker to elevate privileges…
CVE-2026-92808 — Critical (CVSS 10.0): A server-side request forgery (SSRF) vulnerability exists in the UnifiedLogin service of Altium Enterprise Server. An…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →