What is CVE-2019-17523?

CVE-2019-17523 is a medium-severity vulnerability in Technicolor Tc7300.b0, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-11-13.

How severe is CVE-2019-17523?

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

XSS in Technicolor Tc7300.b0

CVE-2019-17523

An XSS vulnerability on Technicolor TC7300 STFA.51.20 devices allows remote attackers to inject arbitrary web script via the FileName parameter to /FTPDiag.asp.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-11-13 · last modified 2026-06-17.

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: 0.006 (48.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Technicolor Tc7300.b0
Technicolor Tc7300.b0 Firmware — versions stfa.51.20

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.technicolor.com/news (Product)
gitlab.com/luiss/cve_repo/blob/master/CVE-2019-17524/README.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-17523?: CVE-2019-17523 is a medium-severity vulnerability in Technicolor Tc7300.b0, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-11-13.
How severe is CVE-2019-17523?: Medium severity. CVSS v3 base score is 5.4 out of 10.