Low severity2.7NVD Advisory· Published Nov 13, 2025· Updated Jun 17, 2026
CVE-2025-64745
CVE-2025-64745
Description
Astro is a web framework. Starting in version 5.2.0 and prior to version 5.15.6, a Reflected Cross-Site Scripting (XSS) vulnerability exists in Astro's development server error pages when the trailingSlash configuration option is used. An attacker can inject arbitrary JavaScript code that executes in the victim's browser context by crafting a malicious URL. While this vulnerability only affects the development server and not production builds, it could be exploited to compromise developer environments through social engineering or malicious links. Version 5.15.6 fixes the issue.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
astronpm | >= 5.2.0, < 5.15.6 | 5.15.6 |
Affected products
3Patches
Vulnerability mechanics
References
6- github.com/withastro/astro/commit/790d9425f39bbbb462f1c27615781cd965009f91nvdPatchWEB
- github.com/withastro/astro/pull/12994nvdPatchWEB
- github.com/withastro/astro/security/advisories/GHSA-w2vj-39qv-7vh7nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-w2vj-39qv-7vh7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-64745ghsaADVISORY
- github.com/withastro/astro/blob/5bc37fd5cade62f753aef66efdf40f982379029a/packages/astro/src/template/4xx.tsnvdProductWEB
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