CVE-2025-34413

CVE-2025-34413 is a high-severity vulnerability with a CVSS 4.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-693.

Key facts

Description

Legality WHISTLEBLOWING by DigitalPA contains a protection mechanism failure in which critical HTTP security headers are not emitted by default. Affected deployments omit Content-Security-Policy, Referrer-Policy, Permissions-Policy, Cross-Origin-Embedder-Policy, Cross-Origin-Opener-Policy, and Cross-Origin-Resource-Policy (with CSP delivered via HTML meta elements being inadequate). The absence of these headers weakens browser-side defenses and increases exposure to client-side attacks such as cross-site scripting, clickjacking, referer leakage, and cross-origin data disclosure.

Frequently asked questions

What is CVE-2025-34413?
Legality WHISTLEBLOWING by DigitalPA contains a protection mechanism failure in which critical HTTP security headers are not emitted by default. Affected deployments omit Content-Security-Policy, Referrer-Policy, Permissions-Policy, Cross-Origin-Embedder-Policy, Cross-Origin-Opener-Policy, and Cross-Origin-Resource-Policy (with CSP delivered via HTML meta elements being inadequate). The absence of these headers weakens browser-side defenses and increases exposure to client-side attacks such as cross-site scripting, clickjacking, referer leakage, and cross-origin data disclosure.
How severe is CVE-2025-34413?
CVE-2025-34413 has a CVSS 4.0 base score of 7.1, rated high severity.
Is CVE-2025-34413 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-34413?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-34413 have an EU (EUVD) identifier?
Yes. CVE-2025-34413 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202183.
When was CVE-2025-34413 published?
CVE-2025-34413 was published on 2025-12-09 and last updated on 2026-06-17.

References

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