CVE-2025-27801
Essential information
- Published
- 28/07/2025 09:15
- Modified
- 29/07/2025 14:14
- Author
- —
- Creator
- —
- CVSS
- 4.6 MEDIUM (v3) 4.6 MEDIUM (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:L/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- HIGH
- User interaction
- ACTIVE
- Confidentiality (V)
- NONE
- Confidentiality (S)
- LOW
- Integrity (V)
- LOW
- Integrity (S)
- LOW
- Availability (V)
- LOW
- Availability (S)
- NONE
- Exploit maturity
- NOT_DEFINED
Description
The Episerver Content Management System (CMS) by Optimizely was affected by multiple Stored Cross-Site Scripting (XSS) vulnerabilities. This allowed an authenticated attacker to execute malicious JavaScript code in the victim's browser.
ContentReference properties, which could be used in the "Edit" section of the CMS, offered an upload functionality for documents. These documents could later be used as displayed content on the page. It was possible to upload SVG files that include malicious JavaScript code that would be executed if a user visited the direct URL of the preview image. Attackers needed at least the role "WebEditor" in order to exploit this issue.
Affected products: Version 11.X: EPiServer.CMS.Core (<11.21.4) with EPiServer.CMS.UI (<11.37.5), Version 12.X: EPiServer.CMS.Core (<12.22.1) with EPiServer.CMS.UI (<11.37.3)
NVD status
- Status
- Awaiting Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- 551230f0-3615-47bd-b7cc-93e92e730bbf
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| optimizely / episerver.cms.core | cpe:2.3:a:optimizely:episerver.cms.core:<11.21.4:*:*:*:*:*:*:* |
| optimizely / episerver.cms.ui | cpe:2.3:a:optimizely:episerver.cms.ui:<11.37.5:*:*:*:*:*:*:* |
| optimizely / episerver.cms.core | cpe:2.3:a:optimizely:episerver.cms.core:<12.22.1:*:*:*:*:*:*:* |
| optimizely / episerver.cms.ui | cpe:2.3:a:optimizely:episerver.cms.ui:<11.37.3:*:*:*:*:*:*:* |