Cross Site Scripting (XSS) vulnerability in Neos CMS 8.3.3 allows a remote authenticated…
Priority LOW 26CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
Cross Site Scripting (XSS) vulnerability in Neos CMS 8.3.3 allows a remote authenticated attacker to execute arbitrary code via a crafted SVG file to the neos/management/media component.
Why it matters now
EPSS 0.00706 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed neos/media-browser (Packagist): 7.3.19, 8.0.16, 8.1.11 +2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | neos/media-browser (Packagist) | before 7.3.19 | 7.3.19 | Patch available | GHSA-6qjf-7g3j-qx25 |
| — | neos/media-browser (Packagist) | 8.0.0 to before 8.0.16 | 8.0.16 | Patch available | GHSA-6qjf-7g3j-qx25 |
| — | neos/media-browser (Packagist) | 8.1.0 to before 8.1.11 | 8.1.11 | Patch available | GHSA-6qjf-7g3j-qx25 |
| — | neos/media-browser (Packagist) | 8.2.0 to before 8.2.11 | 8.2.11 | Patch available | GHSA-6qjf-7g3j-qx25 |
| — | neos/media-browser (Packagist) | 8.3.0 to before 8.3.9 | 8.3.9 | Patch available | GHSA-6qjf-7g3j-qx25 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- neos/media-browser (Packagist) Vendor— Affected before 7.3.19 Fixed in 7.3.19 Patch available GHSA-6qjf-7g3j-qx25
- neos/media-browser (Packagist) Vendor— Affected 8.0.0 to before 8.0.16 Fixed in 8.0.16 Patch available GHSA-6qjf-7g3j-qx25
- neos/media-browser (Packagist) Vendor— Affected 8.1.0 to before 8.1.11 Fixed in 8.1.11 Patch available GHSA-6qjf-7g3j-qx25
- neos/media-browser (Packagist) Vendor— Affected 8.2.0 to before 8.2.11 Fixed in 8.2.11 Patch available GHSA-6qjf-7g3j-qx25
- neos/media-browser (Packagist) Vendor— Affected 8.3.0 to before 8.3.9 Fixed in 8.3.9 Patch available GHSA-6qjf-7g3j-qx25
Remediation
- Fix · GHSA-6qjf-7g3j-qx25 neos/media-browser (Packagist) Fixed in 7.3.19 Advisory →
- Fix · GHSA-6qjf-7g3j-qx25 neos/media-browser (Packagist) Fixed in 8.0.16 Advisory →
- Fix · GHSA-6qjf-7g3j-qx25 neos/media-browser (Packagist) Fixed in 8.1.11 Advisory →
- Fix · GHSA-6qjf-7g3j-qx25 neos/media-browser (Packagist) Fixed in 8.2.11 Advisory →
- Fix · GHSA-6qjf-7g3j-qx25 neos/media-browser (Packagist) Fixed in 8.3.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-37611
- 2026-10-03 Alias added: GHSA-6qjf-7g3j-qx25
References
Other 7
- https://github.com/neos/neos-development-collection/pull/4812
- https://github.com/neos/neos-development-collection/issues/4833
- https://github.com/neos/neos-development-collection/commit/4ac0df04d2e44e164e95887b466075dde3f04045
- https://cheatsheetseries.owasp.org/cheatsheets/Content_Security_Policy_Cheat_Sheet.html
- https://digi.ninja/blog/svg_xss.php
- https://github.com/neos/neos-development-collection
- https://github.com/neos/neos-ui/releases/tag/8.3.4
More Neos Cms vulnerabilities
- TI-2022-12628 Multiple cross-site scripting (XSS) vulnerabilities in Neos CMS allow attackers with the… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2023-37611 · CVE Program
- CVE-2023-37611 · NVD
- FIRST EPSS
- GHSA-6qjf-7g3j-qx25 · 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