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.

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)

EPSS: 0.023 (81.5th percentile) — read the EPSS interpretation.

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.

Affected products

Typo3
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

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.