CVE-2025-27909: concert — Fix

Description

IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.

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CVSS v3.1 Score

5.4

MEDIUM

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

Weakness Type (CWE)

CWE-942 CWE-942

CWE-697 CWE-697

Affected Products

Vendor	Product	Versions
ibm	concert	1.0.0 — 2.0.0

References

Advisories & Patches

https://www.ibm.com/support/pages/node/7242354

Frequently Asked Questions

What is CVE-2025-27909? +

IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-27909? +

CVE-2025-27909 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-27909? +

CVE-2025-27909 affects products from ibm, specifically: concert. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-27909? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-27909