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MEDIUM

CVE-2020-4040

CVSS v3

4.3

MEDIUM

EPSS Score

1.8 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • bolt/boltPackagistall versions · fixed in 3.7.1

Full record on NVD

Description

Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview. This has been fixed in Bolt 3.7.1

Technical details

Published
2020-06-08

Frequently asked questions

What is CVE-2020-4040?

Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview. This has been fixed in Bolt 3.7.1

Is CVE-2020-4040 actively exploited?

Active exploitation of CVE-2020-4040 has not been confirmed. Its EPSS score was 1.8% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-4040?

CVE-2020-4040 has a CVSS v3 base score of 4.3 (MEDIUM severity).

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