CVE-2020-15276

7.7 HIGH 1% exploit odds Fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account, but needs a user to act. High risk of data exposure, data tampering.
Exploit odds: 1.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-10-30 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:56 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.0% in the next 30 days (EPSS).
Severity: 7.7 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-10-30 19:15 UTC
Last modified: 2026-06-17 02:56 UTC
Exploit probability: 1.0% · EPSS, next 30 days
Weakness: CWE-79 · Cross-site scripting
Record status: Modified

Affected

Basercms < 4.4.1

Attack profile CVSS 3.1 · 7.7

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: Required
Scope: Changed
Confidentiality: High
Integrity: High
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-15276.md and follow it. Check whether this project is affected by CVE-2020-15276. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record