Is CVE-2025-53209 in the CISA KEV catalog?

No. CVE-2025-53209 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-53209?

CVE-2025-53209 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2025-53209?

CVE-2025-53209 has an EPSS score of 0.27% (19th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-53209

CRITICAL

9.8

CVSS v3

NVD

Description

Incorrect Privilege Assignment vulnerability in Themeisle Masteriyo LMS PRO allows Privilege Escalation. This issue affects Masteriyo LMS PRO: from n/a through 2.20.0.

CWE-266

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

https://patchstack.com/database/wordpress/plugin/learning-management-system-pro/vulnerability/wordpress-masteriyo-lms-pro-2-20-0-privilege-escalation-vulnerability?_s_id=cve

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.