What is CVE-2023-41107?

CVE-2023-41107 is a medium-severity vulnerability in Tef Portal, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-05.

How severe is CVE-2023-41107?

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

XSS in Tef Portal

CVE-2023-41107

TEF portal 2023-07-17 is vulnerable to a persistent cross site scripting (XSS)attack.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-09-05 · 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: 0.004 (34.8th percentile), scored 2026-10-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Tef Portal — versions 2023-07-17

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-020.txt (Exploit, Vendor Advisory)
www.syss.de/pentest-blog/sicherheitsschwachstellen-im-tef-haendlerportal-syss-2… (Vendor Advisory)

Frequently asked questions

What is CVE-2023-41107?: CVE-2023-41107 is a medium-severity vulnerability in Tef Portal, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-05.
How severe is CVE-2023-41107?: Medium severity. CVSS v3 base score is 5.4 out of 10.