What is CVE-2020-26649?

CVE-2020-26649 is a high-severity vulnerability in Atomx Atomxcms 2, classified under Missing Authentication for Critical Function. CVSS score: 8.1/10. Published 2020-10-22.

How severe is CVE-2020-26649?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Atomx Atomxcms 2

CVE-2020-26649

AtomXCMS 2.0 is affected by Incorrect Access Control via admin/dump.php

Vulnerability class: Broken Authentication

Published 2020-10-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Atomx Atomxcms 2

Weakness classification (CWE)

References

github.com/Drunyacoder/AtomXCMS-2/issues/19 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-26649?: CVE-2020-26649 is a high-severity vulnerability in Atomx Atomxcms 2, classified under Missing Authentication for Critical Function. CVSS score: 8.1/10. Published 2020-10-22.
How severe is CVE-2020-26649?: High severity. CVSS v3 base score is 8.1 out of 10.