What is CVE-2020-11064?

CVE-2020-11064 is a medium-severity vulnerability in TYPO3, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-13.

How severe is CVE-2020-11064?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in TYPO3

CVE-2020-11064

In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.2, it has been discovered that HTML placeholder attributes containing data of other database records are vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability. This has been fixed in 9.5.17 and 10.4.2.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (43.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Typo3
Typo3 Cms — versions >= 9.0.0, < 9.5.17, >= 10.0.0, < 10.4.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2020-11064?: CVE-2020-11064 is a medium-severity vulnerability in TYPO3, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-05-13.
How severe is CVE-2020-11064?: Medium severity. CVSS v3 base score is 5.4 out of 10.