CVE-2020-15273

Name: CVE-2020-15273
Creator: NVD / NIST
Published: 2020-10-30T19:15:12.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2020-15273 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N

EPSS Probability

1.02%

58.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Basercms	Basercms	>= 4.0.0, < 4.4.1

References

https://github.com/baserproject/basercms/commit/b70474ef9dcee6ad8826360884625dc7ca9041a1Patch, Third Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-wpww-4jf4-4hx8Patch, Third Party Advisory
https://packagist.org/packages/baserproject/basercmsThird Party Advisory
https://github.com/baserproject/basercms/commit/b70474ef9dcee6ad8826360884625dc7ca9041a1Patch, Third Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-wpww-4jf4-4hx8Patch, Third Party Advisory
https://packagist.org/packages/baserproject/basercmsThird Party Advisory

Timeline

Published: Oct 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15273?

How severe is CVE-2020-15273?

CVE-2020-15273 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15273?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15273?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST