How severe is CVE-2025-65019?

CVE-2025-65019 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-65019 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65019?

CVE-2025-65019 affects Astro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65019?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-65019 have an EU (EUVD) identifier?

Yes. CVE-2025-65019 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198182.

When was CVE-2025-65019 published?

CVE-2025-65019 was published on 2025-11-19 and last updated on 2026-06-17.

CVE-2025-65019

CVE-2025-65019 is a medium-severity vulnerability in Astro with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198182
Weakness: CWE-79
Affected product: Astro
Published: 2025-11-19
Last modified: 2026-06-17

Description

Astro is a web framework. Prior to version 5.15.9, when using Astro's Cloudflare adapter (@astrojs/cloudflare) with output: 'server', the image optimization endpoint (/_image) contains a critical vulnerability in the isRemoteAllowed() function that unconditionally allows data: protocol URLs. This enables Cross-Site Scripting (XSS) attacks through malicious SVG payloads, bypassing domain restrictions and Content Security Policy protections. This issue has been patched in version 5.15.9.

Frequently asked questions

What is CVE-2025-65019?: Astro is a web framework. Prior to version 5.15.9, when using Astro's Cloudflare adapter (@astrojs/cloudflare) with output: 'server', the image optimization endpoint (/_image) contains a critical vulnerability in the isRemoteAllowed() function that unconditionally allows data: protocol URLs. This enables Cross-Site Scripting (XSS) attacks through malicious SVG payloads, bypassing domain restrictions and Content Security Policy protections. This issue has been patched in version 5.15.9.
How severe is CVE-2025-65019?: CVE-2025-65019 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-65019 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65019?: CVE-2025-65019 affects Astro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65019?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-65019 have an EU (EUVD) identifier?: Yes. CVE-2025-65019 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198182.
When was CVE-2025-65019 published?: CVE-2025-65019 was published on 2025-11-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:astro:astro:*:*:*:*:*:node.js:*:*

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