Optimizely CMS UI before v12.16.0 was discovered to contain a cross-site scripting (XSS)…
Priority MEDIUM 55CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Optimizely CMS UI before v12.16.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the Admin panel.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00423 36th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:optimizely:optimizely_cms:*:*:*:*:*:*:*:* | before 12.16.0 | Vulnerable | Optimizely |
- cpe:2.3:a:optimizely:optimizely_cms:*:*:*:*:*:*:*:* Versions before 12.16.0 Vulnerable ·Optimizely
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-31754
- 2026-10-03 Alias added: GHSA-gjm2-mfg9-qjv2
References
More Optimizely Cms vulnerabilities
- TI-2025-16290 An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. CVSS 3.1HIGH 7.5
- TI-2025-16289 An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. CVSS 3.1HIGH 8.0
- TI-2025-16288 An issue was discovered in Optimizely EPiServer.CMS.Core before 12.22.0. CVSS 3.1MEDIUM 5.7
Sources
- CVE-2023-31754 · CVE Program
- CVE-2023-31754 · NVD
- FIRST EPSS
- GHSA-gjm2-mfg9-qjv2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences