CVE-2020-12530Network attack vector

Browser code injection via redirect GET parameter

Published Mar 2, 2021 · Updated Sep 16, 2024

Cross-site scripting in MB connect line mbCONNECT24 and mymbCONNECT24 2.6.2 and earlier allows remote attackers to inject browser code. The redirect.php endpoint places attacker-controlled GET-parameter content into a rendered page without neutralizing active code. A victim must open the crafted request; the injected code then executes in the portal's browser context and can alter displayed content.

CVSS severity4.3
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in MB connect line mbCONNECT24 and mymbCONNECT24 2.6.2 and earlier allows remote attackers to inject browser code. The redirect.php endpoint places attacker-controlled GET-parameter content into a rendered page without neutralizing active code. A victim must open the crafted request; the injected code then executes in the portal's browser context and can alter displayed content.

The record

CVE
CVE-2020-12530
Published
Mar 2, 2021
Updated
Sep 16, 2024
Vendor
MB connect line
Product
mbCONNECT24
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.2 <=2.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MB connect line · mbCONNECT24version=2.6.2 <=2.6.2
MB connect line · mymbCONNECT24version=2.6.2 <=2.6.2

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
4.3CERT VDECVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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