XSS in TYPO3
CVE-2018-6905
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.022 (81.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- forge.typo3.org/issues/84191 (Patch, Vendor Advisory)
- www.securitytracker.com/id/1040755 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/pradeepjairamani/TYPO3-XSS-POC (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-6905?
- CVE-2018-6905 is a medium-severity vulnerability in TYPO3, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-04-08.
- How severe is CVE-2018-6905?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2018-6905 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.