Auth bypass in Easy Integration For Dropbox

CVE-2026-15958

The Easy Integration for Dropbox WordPress plugin before 2.2.0 does not perform authorization checks on several of its file-management AJAX actions that it also registers for unauthenticated users, allowing an unauthenticated attacker to list, download and upload arbitrary files across the connected Dropbox account and to read the connected account and administrator email addresses.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (28.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-15958: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Easy Integration For Dropbox — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15958?
CVE-2026-15958 is a critical-severity vulnerability in Easy Integration For Dropbox, classified under Missing Authorization. CVSS score: 9.3/10. Published 2026-08-04.
How severe is CVE-2026-15958?
Critical severity. CVSS v3 base score is 9.3 out of 10.