CVE-2020-15273 json
Cross-Site Scripting in baserCMS
published 2020-10-30 6 y ago modified 2026-07-08 4 mo ago also GHSA-wpww-4jf4-4hx8 , EUVD-2020-1473
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. The issue affects the following components: Edit feed settings, Edit widget area, Sub site new registration, New category registration. Arbitrary JavaScript may be executed by entering specific characters in the account that can access the file upload function category list, subsite setting list, widget area edit, and feed list on the management screen. The issue was introduced in version 4.0.0. It is fixed in version 4.4.1.
Patch / fix
- packagist baserproject/basercms 4.4.1
- basercms basercms 4.4.1
Exploit prediction
1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
| GitHub | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | baserproject/basercms | >=4.4.0, <4.4.1 |
4.4.1 |
Affected products
- baserproject basercms
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/baserproject/basercms/commit/b70474ef9dcee6ad8826360884625dc7ca9041a1
web, patch, third-party-advisory
-
github.com
/baserproject/basercms/security/advisories/GHSA-wpww-4jf4-4hx8
web, patch, third-party-advisory
-
packagist.org
/packages/baserproject/basercms
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15273
advisory
Sources
- CVE List CVE-2020-15273
- GitHub Advisory GHSA-wpww-4jf4-4hx8
- NVD CVE-2020-15273
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