What is CVE-2020-10540?

CVE-2020-10540 is a high-severity vulnerability in Untis Webuntis, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2020-03-13.

How severe is CVE-2020-10540?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Untis Webuntis

CVE-2020-10540

Untis WebUntis before 2020.9.6 allows CSRF for certain combinations of rights and modules.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2020-03-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (36.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Untis Webuntis

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

help.untis.at/hc/de/articles/360008456699-WebUntis-Release-Notes (Vendor Advisory)

Frequently asked questions

What is CVE-2020-10540?: CVE-2020-10540 is a high-severity vulnerability in Untis Webuntis, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2020-03-13.
How severe is CVE-2020-10540?: High severity. CVSS v3 base score is 8.8 out of 10.