What is CVE-2010-3665?

CVE-2010-3665 is a medium-severity vulnerability in TYPO3, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-11-04.

How severe is CVE-2010-3665?

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

XSS in TYPO3

CVE-2010-3665

TYPO3 before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4 and 4.4.x before 4.4.1 allows XSS on the Extension Manager.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-11-04 · last modified 2026-06-16.

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.

EPSS exploit prediction

EPSS: 0.008 (54.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

TYPO3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-tracker.debian.org/tracker/CVE-2010-3665 (Third Party Advisory)
typo3.org/security/advisory/typo3-sa-2010-012/ (Vendor Advisory)
bugs.debian.org/cgi-bin/bugreport.cgi (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2010-3665?: CVE-2010-3665 is a medium-severity vulnerability in TYPO3, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-11-04.
How severe is CVE-2010-3665?: Medium severity. CVSS v3 base score is 5.4 out of 10.