CVE-2020-6859Network attack vector

Unauthenticated profile tampering via unchecked user ID

Published Jan 13, 2020 · Updated Aug 4, 2024

IDOR in Ultimate Member 2.1.2 and earlier allows remote attackers to alter other users’ profiles and cover photos through crafted requests. ajax_resize_image and ajax_image_upload trust the request-supplied user_id when selecting the target account without checking whether the requester may edit that user. Unauthenticated network access to the WordPress AJAX handlers is sufficient, and exploitation changes another member’s stored profile imagery or profile data.

CVSS severity5.3
Medium
EPSS probability2.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Ultimate Member 2.1.2 and earlier allows remote attackers to alter other users’ profiles and cover photos through crafted requests. ajax_resize_image and ajax_image_upload trust the request-supplied user_id when selecting the target account without checking whether the requester may edit that user. Unauthenticated network access to the WordPress AJAX handlers is sufficient, and exploitation changes another member’s stored profile imagery or profile data.

The record

CVE
CVE-2020-6859
Published
Jan 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 13, 2020CVE 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

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

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-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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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