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

published 2020-10-22 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-19191

cvss: 8.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Drunyacoder/AtomXCMS-2/issues/19 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-862 Missing Authorization

References

github.com /Drunyacoder/AtomXCMS-2/issues/19
exploit, issue-tracking, third-party-advisory

Sources

CVE List CVE-2020-26649
NVD CVE-2020-26649

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary