What is CVE-2021-43725?

CVE-2021-43725 is a medium-severity vulnerability in Spotweb Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-03-28.

How severe is CVE-2021-43725?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Spotweb Project

CVE-2021-43725

There is a Cross Site Scripting (XSS) vulnerability in SpotPage_login.php of Spotweb 1.5.1 and below, which allows remote attackers to inject arbitrary web script or HTML via the data[performredirect] parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.026 (84.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Spotweb Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/spotweb/spotweb/issues/718 (Exploit, Third Party Advisory, Issue Tracking)
github.com/spotweb/spotweb/commit/2bfa001689aae96009688a193c64478647ba45a1 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-43725?: CVE-2021-43725 is a medium-severity vulnerability in Spotweb Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-03-28.
How severe is CVE-2021-43725?: Medium severity. CVSS v3 base score is 6.1 out of 10.