SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-4040

Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint.

MEDIUM 4.3EPSS 1.77%

Does this matter?

Lower severity and a low EPSS score (1.77%). Track it; it rarely justifies an emergency change on its own.

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

CVSS 3.1
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
1.77% probability · 78th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-352
Affected
boltcms/bolt
Source
security-advisories@github.com
EPSS trend
0%3%5%26 October 2026: 1.77%26 October 202626 October 2026

EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.