IBM Concert Software 1.0–1.1 CORS Misconfig Allows Privileged Actions
CVE-2025-27909 Published on August 18, 2025

IBM Concert Software cross-origin resource sharing
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2025-27909 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

Permissive Cross-domain Policy with Untrusted Domains

The software uses a cross-domain policy file that includes domains that should not be trusted.


Products Associated with CVE-2025-27909

Want to know whenever a new CVE is published for IBM Concert Software? stack.watch will email you.

IBM Concert Software
 

Affected Versions

IBM Concert Software:

Exploit Probability

EPSS
0.03%
Percentile
6.35%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.