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Medium

Neos CMS vulnerable to XSS in various backend modules

  • Disclosed: 03.06.2022
  • Updated: 11.10.2026 10:22

Multiple cross-site scripting (XSS) vulnerabilities in Neos CMS allow attackers with the editor role or higher to inject arbitrary script or HTML code using the editor function, the deletion of assets, or a workspace title. The vulnerabilities were found in versions 3.3.29 and 8.0.1 and could also be present in all intermediate versions.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package neos/neos >= 3.3.0, < 4.4.0, >= 5.3.0, < 5.3.10, >= 7.0.0, < 7.0.9, >= 7.1.0, < 7.1.7, >= 7.2.0, < 7.2.6, >= 7.3.0, < 7.3.4, >= 8.0.0, < 8.0.2 4.4.0, 5.3.10, 7.0.9, 7.1.7, 7.2.6, 7.3.4, 8.0.2

References

CVSS score 5.4/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
Composer
Package
neos/neos
Disclosed
03.06.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-7m9h-v68w-pfw3 - CC BY 4.0

Vulnerability history: neos/neos

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
5
First → latest
05.2022 05.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 2
  • Medium 3

Disclosures per year

  1. Cross-site Scripting vulnerabilities in Neos
    High ghsa-6cj3-rc4p-f38f >= 1.2.0, < 1.2.13, >= 2.0.0, < 2.0.4 1.2.13, 2.0.4
  2. Privilege Escalation in TYPO3 Neos
    Medium · 4.2 ghsa-43cf-7f3h-38rg >= 1.1.0, < 1.1.3, >= 1.2.0, < 1.2.3 1.1.3, 1.2.3
  3. Neos Information Disclosure Security Note
    High · 7.5 ghsa-3c5g-73f7-grvm >= 2.3.0, < 3.0.20, >= 3.1.0, < 3.1.18, >= 3.2.0, < 3.2.14, >= 3.3.0, < 3.3.23, >= 4.0.0, < 4.0.17, >= 4.1.0, < 4.1.16, >= 4.2.0, < 4.2.12, >= 4.3.0, < 4.3.3 3.0.20, 3.1.18, 3.2.14, 3.3.23, 4.0.17, 4.1.16, 4.2.12, 4.3.3
  4. Neos CMS vulnerable to XSS in various backend modules this entry
    Medium · 5.4 CVE-2022-30429 >= 3.3.0, < 4.4.0, >= 5.3.0, < 5.3.10, >= 7.0.0, < 7.0.9, >= 7.1.0, < 7.1.7, >= 7.2.0, < 7.2.6, >= 7.3.0, < 7.3.4, >= 8.0.0, < 8.0.2 4.4.0, 5.3.10, 7.0.9, 7.1.7, 7.2.6, 7.3.4, 8.0.2
  5. XSS in various backend modules due to (un)escaping in JS notification module
    Medium ghsa-jfxf-4frr-9j3q >= 3.3, < 5.3.10, >= 7.0.0, < 7.0.9, >= 7.1.0, < 7.1.7, >= 7.2.0, < 7.2.6, >= 7.3.0, < 7.3.4, >= 8.0.0, < 8.0.2 5.3.10, 7.0.9, 7.1.7, 7.2.6, 7.3.4, 8.0.2

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