EUVD-2026-41144Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
AV:N and PR:N because attacker only needs to host a malicious URL; UI:R reflects mandatory CMS editor interaction; no availability impact applies.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In versions prior to 6.2.2, the "Insert media from web" functionality in the CMS is vulnerable to XSS from a specially crafted embed. This issue was fixed in version 6.2.2/
AnalysisAI
Cross-site scripting in Silverstripe Framework's 'Insert media from web' CMS feature allows a remote unauthenticated attacker to inject malicious JavaScript by supplying a specially crafted embed URL that a CMS editor then inserts into content. All Silverstripe Framework installations prior to version 6.2.2 are affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a CMS editor actively uses the 'Insert media from web' functionality to insert a URL pointing to attacker-controlled content. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.4 (Medium) reflects a network-exploitable, low-complexity attack requiring no privileges but necessitating user interaction (UI:R), with limited confidentiality and integrity impact and no availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a web resource whose embed response contains a malicious JavaScript payload. The attacker then socially engineers a Silverstripe CMS editor into using the 'Insert media from web' feature to embed that URL into a page or article. … |
| Remediation | Upgrade Silverstripe Framework to version 6.2.2, which contains the vendor-released patch for this issue. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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