CVE-2020-15276

Name: CVE-2020-15276
Creator: NVD / NIST
Published: 2020-10-30T19:15:12.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2020-15276 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

baserCMS before version 4.4.1 is vulnerable to Cross-Site Scripting. Arbitrary JavaScript may be executed by entering a crafted nickname in blog comments. The issue affects the blog comment component. It is fixed in version 4.4.1.

Metrics

CVSS 3.1

8.7/10

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

EPSS Probability

0.99%

58.1th 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://basercms.net/security/20201029Vendor Advisory
https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54Patch, Third Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxgPatch, Third Party Advisory
https://basercms.net/security/20201029Vendor Advisory
https://github.com/baserproject/basercms/commit/d14f506385f21d67d5ff3462f204d4c2321b7c54Patch, Third Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-fw5q-j9p4-3vxgPatch, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-15276?

How severe is CVE-2020-15276?

CVE-2020-15276 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15276?

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-2020-15276?

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

Scan your code now

Source: NVD / NIST