CVE-2025-31966
Broken Server-Side Validation in HCL Sametime Enables Bypass
Publication date: 2026-03-17
Last updated on: 2026-03-31
Assigner: HCL Software
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| hcltech | sametime | to 12.0.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability in HCL Sametime involves broken server-side validation. Although the application performs input checks on the client side, these checks are not enforced by the web server itself.
This means an attacker can bypass the client-side restrictions by sending manipulated HTTP requests directly to the server, potentially exploiting the lack of proper validation on the server side.
How can this vulnerability impact me? :
This vulnerability can impact you by allowing an attacker with high privileges to send crafted HTTP requests that bypass client-side validation, potentially leading to unauthorized or unintended actions within the HCL Sametime application.
According to the CVSS score (2.7), the impact on confidentiality is none, but there is a low impact on integrity, meaning the attacker could alter data or behavior in a limited way without affecting availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know