How severe is CVE-2020-26649?

CVE-2020-26649 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2020-26649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26649?

CVE-2020-26649 affects Atomx Atomxcms 2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26649?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-26649 published?

CVE-2020-26649 was published on 2020-10-22 and last updated on 2026-06-17.

CVE-2020-26649

CVE-2020-26649 is a high-severity vulnerability in Atomx Atomxcms 2 with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Atomx Atomxcms 2
Published: 2020-10-22
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-26649?: AtomXCMS 2.0 is affected by Incorrect Access Control via admin/dump.php
How severe is CVE-2020-26649?: CVE-2020-26649 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2020-26649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26649?: CVE-2020-26649 affects Atomx Atomxcms 2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-26649 published?: CVE-2020-26649 was published on 2020-10-22 and last updated on 2026-06-17.

References

https://github.com/Drunyacoder/AtomXCMS-2/issues/19

Affected products (1)

cpe:2.3:a:atomx:atomxcms_2:-:*:*:*:*:*:*:*

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