CVE-2020-18157Network attack vector

Cross-site state changes via doaddsave action

Published Jul 29, 2021 · Updated Aug 4, 2024

Cross-site request forgery in MetInfo 6.1.3 allows remote attackers to invoke the doaddsave action through an authenticated user's browser. Published records identify admin/index.php as the affected locus but do not disclose the rejected validation or the action's resulting state change. Exploitation requires user interaction and an authenticated MetInfo session; the precise confidentiality, integrity, and availability consequences are undisclosed.

CVSS severity8.8
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in MetInfo 6.1.3 allows remote attackers to invoke the doaddsave action through an authenticated user's browser. Published records identify admin/index.php as the affected locus but do not disclose the rejected validation or the action's resulting state change. Exploitation requires user interaction and an authenticated MetInfo session; the precise confidentiality, integrity, and availability consequences are undisclosed.

The record

CVE
CVE-2020-18157
Published
Jul 29, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, CAPEC-62, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1204User Execution

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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