What is CVE-2020-12530?

CVE-2020-12530 is a medium-severity vulnerability in Mb Connect Line Mbconnect24, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2021-03-02.

How severe is CVE-2020-12530?

Medium severity. CVSS v3 base score is 4.3 out of 10.

XSS in Mb Connect Line Mbconnect24

CVE-2020-12530

An issue was discovered in MB connect line mymbCONNECT24 and mbCONNECT24 software in all versions through V2.6.2. There is an XSS issue in the redirect.php allowing an attacker to inject code via a get parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-03-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (49.1th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.1% 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

Mb Connect Line Mbconnect24 — versions 2.6.2
Mb Connect Line Mymbconnect24 — versions 2.6.2
Mbconnectline Mbconnect24
Mbconnectline Mymbconnect24

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cert.vde.com/de-de/advisories/vde-2021-003 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-12530?: CVE-2020-12530 is a medium-severity vulnerability in Mb Connect Line Mbconnect24, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2021-03-02.
How severe is CVE-2020-12530?: Medium severity. CVSS v3 base score is 4.3 out of 10.