CVE-2026-125729
Received
Received - Intake
Content Security Policy Bypass in Plack Middleware CSP
Vulnerability report for CVE-2026-125729, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-10
Last updated on: 2026-11-10
Assigner: CPANSec
Description
Description
Plack::Middleware::CSP versions before 0.03 for Perl send the Content Security Policy under the wrong header name, so browsers never enforce it.
The call method sets the policy in a response header named "content-security-protocol" instead of "Content-Security-Policy". Browsers ignore that header.
Any cross-site scripting flaw in the wrapped application can run scripts the policy was meant to block.
CVSS Scores
EPSS Scores
| Probability: | |
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Meta Information
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-684 | The code does not function according to its published specifications, potentially leading to incorrect usage. |
