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Silverstripe CVE-2017-14498

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2017-09-15 cve@mitre.org
6.1
CVSS 3.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.38%.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAI

SilverStripe CMS before 3.6.1 has XSS via an SVG document that is mishandled by (1) the Insert Media option in the content editor or (2) an admin/assets/add pathname, as demonstrated by the. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affected Packages

composer silverstripe/cms fix: 3.6.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. SilverStripe CMS before 3.6.1 has XSS via an SVG document that is mishandled by (1) the Insert Media option in the content editor or (2) an admin/assets/add pathname, as demonstrated by the admin/pages/edit/EditorToolbar/MediaForm/field/AssetUploadField/upload URI, aka issue SS-2017-017. Affected products include: Silverstripe. Version information: before 3.6.1.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionCVE.org

SilverStripe CMS before 3.6.1 has XSS via an SVG document that is mishandled by (1) the Insert Media option in the content editor or (2) an admin/assets/add pathname, as demonstrated by the admin/pages/edit/EditorToolbar/MediaForm/field/AssetUploadField/upload URI, aka issue SS-2017-017.

Threat Intelligence Overview

EPSS Score
0.4%
Top 41% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:*
CVE-2013-2653 MEDIUM POC
5.8 Nov 13

security/MemberLoginForm.php in SilverStripe 3.0.3 supports login using a GET request, which makes it easier for remote

CVE-2015-5062 MEDIUM POC
5.8 Jun 24

Open redirect vulnerability in SilverStripe CMS & Framework 3.1.13 allows remote attackers to redirect users to arbitrar

CVE-2019-12204 CRITICAL
9.8 Sep 25

In SilverStripe through 4.3.3, a missing warning about leaving install.php in a public webroot can lead to unauthenticat

CVE-2019-12149 CRITICAL
9.8 Jun 11

SQL injection vulnerability in silverstripe/restfulserver module 1.0.x before 1.0.9, 2.0.x before 2.0.4, and 2.1.x befor

CVE-2019-5715 CRITICAL
9.8 Apr 11

All versions of SilverStripe 3 prior to 3.6.7 and 3.7.3, and all versions of SilverStripe 4 prior to 4.0.7, 4.1.5, 4.2.4

CVE-2026-54720 MEDIUM POC
5.4 Jul 01

Cross-site scripting in Silverstripe Framework's 'Insert media from web' CMS feature allows a remote unauthenticated att

CVE-2022-38724 MEDIUM POC
5.4 Nov 23

Silverstripe silverstripe/framework through 4.11.0, silverstripe/assets through 1.11.0, and silverstripe/asset-admin thr

CVE-2013-6789 MEDIUM POC
5.0 Nov 13

security/MemberLoginForm.php in SilverStripe 3.0.3 supports credentials in a GET request, which allows remote or local a

CVE-2022-38148 HIGH
8.8 Nov 21

Silverstripe silverstripe/framework through 4.11 allows SQL Injection. Rated high severity (CVSS 8.8), this vulnerabilit

CVE-2020-9309 HIGH
8.8 Jul 15

Silverstripe CMS through 4.5 can be susceptible to script execution from malicious upload contents under allowed file ex

CVE-2012-4968 MEDIUM POC
4.3 Sep 17

Multiple cross-site scripting (XSS) vulnerabilities in SilverStripe 2.3.x before 2.3.13 and 2.4.x before 2.4.7 allow rem

CVE-2015-5063 MEDIUM POC
4.3 Jun 24

Multiple cross-site scripting (XSS) vulnerabilities in SilverStripe CMS & Framework 3.1.13 allow remote attackers to inj

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