What is CVE-2025-15563?

CVE-2025-15563 is a medium-severity vulnerability in Nestersoft Worktime, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-02-19.

How severe is CVE-2025-15563?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Nestersoft Worktime

CVE-2025-15563

Any unauthenticated user can reset the WorkTime on-prem database configuration by sending a specific HTTP request to the WorkTime server. No authorization check is applied here.

Vulnerability class: Broken Access Control

Published 2026-02-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Nestersoft Worktime
Nestersoft Inc. Worktime (On-Prem/cloud) — versions <= 11.8.8

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

551230f0-3615-47bd-b7cc-93e92e730bbf (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2025-15563?: CVE-2025-15563 is a medium-severity vulnerability in Nestersoft Worktime, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-02-19.
How severe is CVE-2025-15563?: Medium severity. CVSS v3 base score is 5.3 out of 10.