// For flags

CVE-2025-27909

IBM Concert Software cross-origin resource sharing

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-03-10 CVE Reserved
  • 2025-08-18 CVE Published
  • 2025-08-18 CVE Updated
  • 2025-08-24 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-942: Permissive Cross-domain Policy with Untrusted Domains
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
https://www.ibm.com/support/pages/node/7242354 2025-08-18
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
IBM
Search vendor "IBM"
 Concert Software
Search vendor "IBM" for product "Concert Software"
 >= 1.0.0 <= 1.1.0
Search vendor "IBM" for product "Concert Software" and version " >= 1.0.0 <= 1.1.0"
en
Affected