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Vulnerability details: VCID-jtr1-8tud-23c1
Vulnerability ID VCID-jtr1-8tud-23c1
Aliases CVE-2024-47885
GHSA-m85w-3h95-hcf9
Summary The Astro web framework has a DOM Clobbering gadget in the client-side router starting in version 3.0.0 and prior to version 4.16.1. It can lead to cross-site scripting (XSS) in websites enables Astro's client-side routing and has *stored* attacker-controlled scriptless HTML elements (i.e., `iframe` tags with unsanitized `name` attributes) on the destination pages. This vulnerability can result in cross-site scripting (XSS) attacks on websites that built with Astro that enable the client-side routing with `ViewTransitions` and store the user-inserted scriptless HTML tags without properly sanitizing the `name` attributes on the page. Version 4.16.1 contains a patch for this issue.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0094 https://api.first.org/data/v1/epss?cve=CVE-2024-47885
epss 0.0094 https://api.first.org/data/v1/epss?cve=CVE-2024-47885
epss 0.0094 https://api.first.org/data/v1/epss?cve=CVE-2024-47885
epss 0.0094 https://api.first.org/data/v1/epss?cve=CVE-2024-47885
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-m85w-3h95-hcf9
cvssv3.1 5.9 https://github.com/withastro/astro
generic_textual MODERATE https://github.com/withastro/astro
cvssv3.1 5.9 https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156
generic_textual MODERATE https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156
ssvc Track https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156
cvssv3.1 5.9 https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e
generic_textual MODERATE https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e
ssvc Track https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e
cvssv3.1 5.9 https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
cvssv3.1_qr MODERATE https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
generic_textual MODERATE https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
ssvc Track https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
cvssv3.1 5.9 https://nvd.nist.gov/vuln/detail/CVE-2024-47885
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2024-47885
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2024-47885
https://github.com/withastro/astro
a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e
CVE-2024-47885 https://nvd.nist.gov/vuln/detail/CVE-2024-47885
GHSA-m85w-3h95-hcf9 https://github.com/advisories/GHSA-m85w-3h95-hcf9
GHSA-m85w-3h95-hcf9 https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
router.ts#L135-L156 https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H Found at https://github.com/withastro/astro
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H Found at https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T14:46:55Z/ Found at https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H Found at https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T14:46:55Z/ Found at https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H Found at https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-15T14:46:55Z/ Found at https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2024-47885
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.76682
EPSS Score 0.0094
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-10T18:45:21.380340+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2024/47xxx/CVE-2024-47885.json 38.6.0