CVE-2020-5335Network attack vector

Forged email via unprotected request endpoint

Published May 4, 2020 · Updated Sep 16, 2024

Cross-site request forgery in Archer Platform before 6.7 P2 allows remote attackers to send email as an authenticated victim. The Shared/GenericEmailClient.aspx endpoint accepts email-sending requests without the CSRF protection applied to other sensitive pages. Exploitation requires a logged-in user to visit an attacker-controlled site; the demonstrated consequence is forged email sent with that user's application privileges.

CVSS severity5.0
Medium
EPSS probability0.46%
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 Archer Platform before 6.7 P2 allows remote attackers to send email as an authenticated victim. The Shared/GenericEmailClient.aspx endpoint accepts email-sending requests without the CSRF protection applied to other sensitive pages. Exploitation requires a logged-in user to visit an attacker-controlled site; the demonstrated consequence is forged email sent with that user's application privileges.

The record

CVE
CVE-2020-5335
Published
May 4, 2020
Updated
Sep 16, 2024
Vendor
Archer
Product
Archer Platform
Classifications
CWE-352, CAPEC-62, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 4, 2020CVE 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=unspecified <6.7 P2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Archer · Archer Platformversion=unspecified <6.7 P2

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.0RSACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
6.8NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1204.001User Execution: Malicious Link

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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