CVE-2018-6905
Typo3 XSS Vulnerability
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
- Record
CVE-2018-6905- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
- Record
CVE-2018-6905- Updated
- 2026-11-02
EUVDEUVD-2022-2249 No score
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
- Record
EUVD-2022-2249- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3w22-wrwx-2r75
Typo3 XSS Vulnerability
The page module in TYPO3 before 8.7.11 has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
- Record
GHSA-3w22-wrwx-2r75- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
The page module in TYPO3 before 8.7.11, and 9.1.0, has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
- Record
CVE-2018-6905- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-3w22-wrwx-2r75
Typo3 XSS Vulnerability
The page module in TYPO3 before 8.7.11 has XSS via $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'], as demonstrated by an admin entering a crafted site name during the installation process.
- Record
GHSA-3w22-wrwx-2r75- CVSS 3.0
- 4.8 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cmsPackagist |
before 9.2.0 | 9.2.0 |
typo3/cmsPackagist |
before 9.2.0, plus listed versions 6.2.06.2.16.2.106.2.10-rc16.2.11 Show 45 moreShow less6.2.126.2.136.2.146.2.156.2.166.2.176.2.186.2.196.2.26.2.206.2.216.2.226.2.236.2.246.2.256.2.266.2.276.2.286.2.296.2.36.2.306.2.316.2.46.2.56.2.66.2.76.2.86.2.97.0.07.0.17.0.27.1.07.2.07.3.07.3.17.4.07.5.07.6.07.6.17.6.107.6.117.6.127.6.137.6.147.6.15 |
9.2.0 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | dnr6419/CVE-2018-6905 | 2021-06-02 |
| PoC in GitHub | pradeepjairamani/TYPO3-XSS-POC | 2018-04-08 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-6905 is a medium vulnerability (CVSS 4.8) in Typo3, published April 8, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.17%, the 82nd percentile. Fixed in typo3/cms 9.2.0.
References
Left out here: 75 versions. The JSON record has them.