CVE-2026-59690: A Missing Authorization vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection Manager, MOVEit WAF, and Multi Tenant allows an authenticated

highCVSS 8CVE-2026-59690

A Missing Authorization vulnerability in Progress Software LoadMaster, ECS Connection Manager, Object Scale Connection Manager, MOVEit WAF, and Multi Tenant allows an authenticated attacker with low privileges to perform privileged administrative operations via the REST API that should not be accessible to their permission level, potentially resulting in a system compromise.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8
Published: 2026-07-27
Last updated: 2026-07-28
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-59690

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-596900.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59690	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

criticalProgress security advisory (AV26-755)cccs
high[NEW] [high] Progress Software LoadMaster and MOVEit WAF: Multiple vulnerabilitiescert-bund

Recent advisories for A Missing Authorization

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-15227: Missing authorization in Checkmk <2.5.0p10, <2.4.0p35, <2.3.0p49, and 2.2.0 (EOL) allows an au…nvd · 2026-07-31
highCVE-2026-15397: The Subscriptions for WooCommerce plugin for WordPress is vulnerable to Missing Authorization …nvd · 2026-07-30
unknownCVE-2026-66724: MWDB Core versions >=2.0.0 and <2.19.0 contain a missing authorization vulnerability in the de…nvd · 2026-07-29
unknownCVE-2026-66723: MWDB Core versions >=2.2.0 and <2.19.0 contain a missing authorization vulnerability in the Re…nvd · 2026-07-29
criticalCVE-2026-14488: The Meta Box AIO plugin for WordPress is vulnerable to Missing Authorization via the template_…nvd · 2026-07-29
highCVE-2026-50622: Description: Missing Authorization in Apache Atlas. A missing authorization vulnerability in A…nvd · 2026-07-29