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Vulnerability details: VCID-a3yc-fxa1-gfhy
Vulnerability ID VCID-a3yc-fxa1-gfhy
Aliases CVE-2025-30148
GHSA-rhx4-hvx9-j387
Summary Silverstripe Framework has a XSS vulnerability in HTML editor ### Impact A bad actor with access to edit content in the CMS could send a specifically crafted encoded payload to the server, which could be used to inject a JavaScript payload on the front end of the site. The payload would be sanitised on the client-side, but server-side sanitisation doesn't catch it. The server-side sanitisation logic has been updated to sanitise against this attack. ### Reported by James Nicoll from Fujitsu Cyber ### References - https://www.silverstripe.org/download/security-releases/cve-2025-30148
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
System Score Found at
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
epss 0.00167 https://api.first.org/data/v1/epss?cve=CVE-2025-30148
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-rhx4-hvx9-j387
cvssv3.1 5.4 https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/CVE-2025-30148.yaml
generic_textual MODERATE https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/CVE-2025-30148.yaml
cvssv3.1 5.4 https://github.com/silverstripe/silverstripe-framework
generic_textual MODERATE https://github.com/silverstripe/silverstripe-framework
cvssv3.1 5.4 https://github.com/silverstripe/silverstripe-framework/commit/e99cfd62d160d145a76fcf9631e6b11226e42358
generic_textual MODERATE https://github.com/silverstripe/silverstripe-framework/commit/e99cfd62d160d145a76fcf9631e6b11226e42358
ssvc Track https://github.com/silverstripe/silverstripe-framework/commit/e99cfd62d160d145a76fcf9631e6b11226e42358
cvssv3.1 5.4 https://github.com/silverstripe/silverstripe-framework/pull/11682
generic_textual MODERATE https://github.com/silverstripe/silverstripe-framework/pull/11682
cvssv3.1 5.4 https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-rhx4-hvx9-j387
cvssv3.1_qr MODERATE https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-rhx4-hvx9-j387
generic_textual MODERATE https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-rhx4-hvx9-j387
ssvc Track https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-rhx4-hvx9-j387
cvssv3.1 5.4 https://nvd.nist.gov/vuln/detail/CVE-2025-30148
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2025-30148
cvssv3.1 5.4 https://www.silverstripe.org/download/security-releases/cve-2025-30148
generic_textual MODERATE https://www.silverstripe.org/download/security-releases/cve-2025-30148
ssvc Track https://www.silverstripe.org/download/security-releases/cve-2025-30148
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/CVE-2025-30148.yaml
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

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low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/silverstripe/silverstripe-framework
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

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high

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none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/silverstripe/silverstripe-framework/commit/e99cfd62d160d145a76fcf9631e6b11226e42358
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:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-10T13:34:01Z/ Found at https://github.com/silverstripe/silverstripe-framework/commit/e99cfd62d160d145a76fcf9631e6b11226e42358
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/silverstripe/silverstripe-framework/pull/11682
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:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-rhx4-hvx9-j387
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:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-10T13:34:01Z/ Found at https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-rhx4-hvx9-j387
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2025-30148
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:L/PR:L/UI:N/S:U/C:L/I:L/A:N Found at https://www.silverstripe.org/download/security-releases/cve-2025-30148
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:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-10T13:34:01Z/ Found at https://www.silverstripe.org/download/security-releases/cve-2025-30148
Exploit Prediction Scoring System (EPSS)
Percentile 0.37948
EPSS Score 0.00167
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:54:49.743005+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-rhx4-hvx9-j387/GHSA-rhx4-hvx9-j387.json 38.0.0