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Vulnerability details: VCID-twf5-bzba-gqb4
Vulnerability ID VCID-twf5-bzba-gqb4
Aliases CVE-2020-15273
GHSA-wpww-4jf4-4hx8
Summary Cross-site Scripting baserCMS is vulnerable to Cross-Site Scripting. The issue affects the following components; Edit feed settings, Edit widget area, Sub site new registration, and New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, sub-site setting list, widget area edit, and feed list on the management screen.
Status Published
Exploitability 0.5
Weighted Severity 6.6
Risk 3.3
Affected and Fixed Packages Package Details
Weaknesses (3)
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N Found at https://github.com/baserproject/basercms/commit/b70474ef9dcee6ad8826360884625dc7ca9041a1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N Found at https://github.com/baserproject/basercms/security/advisories/GHSA-wpww-4jf4-4hx8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-15273
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N Found at https://packagist.org/packages/baserproject/basercms
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Exploit Prediction Scoring System (EPSS)
Percentile 0.61932
EPSS Score 0.00414
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:20:34.183101+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/baserproject/basercms/CVE-2020-15273.yml 38.6.0