CVE-2020-35570Network attack vector

Unauthenticated file disclosure via forced browsing

Published Feb 16, 2021 · Updated Sep 16, 2024

Improper access control in mbCONNECT24-family portals through 2.11.2 allows remote attackers to read restricted files via forced browsing. Published advisories do not identify the affected URL paths or explain which authorization check fails, stating only that an incomplete fix leaves restricted files directly reachable. Unauthenticated network access is sufficient, and the documented consequence is limited to file disclosure rather than modification or service interruption.

CVSS severity5.3
Medium
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in mbCONNECT24-family portals through 2.11.2 allows remote attackers to read restricted files via forced browsing. Published advisories do not identify the affected URL paths or explain which authorization check fails, stating only that an incomplete fix leaves restricted files directly reachable. Unauthenticated network access is sufficient, and the documented consequence is limited to file disclosure rather than modification or service interruption.

The record

CVE
CVE-2020-35570
Published
Feb 16, 2021
Updated
Sep 16, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-425, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3MITRECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-425Direct Request ('Forced Browsing')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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