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Vulnerability details: VCID-wvnk-63hy-ykeq
Vulnerability ID VCID-wvnk-63hy-ykeq
Aliases CVE-2020-15276
GHSA-fw5q-j9p4-3vxg
Summary Cross-site Scripting baserCMS is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a specially crafted nickname in the blog comments. The issue affects the blog comment component.
Status Published
Exploitability 0.5
Weighted Severity 6.9
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00592 https://api.first.org/data/v1/epss?cve=CVE-2020-15276
cvssv3.1 7.7 https://basercms.net/security/20201029
generic_textual LOW https://basercms.net/security/20201029
cvssv3.1 7.7 https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54
generic_textual LOW https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54
cvssv3.1 7.7 https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxg
generic_textual LOW https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxg
cvssv3.1 7.7 https://nvd.nist.gov/vuln/detail/CVE-2020-15276
generic_textual LOW https://nvd.nist.gov/vuln/detail/CVE-2020-15276
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-15276
https://basercms.net/security/20201029
https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54
https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxg
CVE-2020-15276 https://nvd.nist.gov/vuln/detail/CVE-2020-15276
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N Found at https://basercms.net/security/20201029
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:L/UI:R/S:C/C:H/I:H/A:N Found at https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54
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:L/UI:R/S:C/C:H/I:H/A:N Found at https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxg
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:L/UI:R/S:C/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-15276
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 0.69606
EPSS Score 0.00592
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:20:34.247201+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/baserproject/basercms/CVE-2020-15276.yml 38.6.0