CVE-2020-8811Public exploitNetwork attack vector

Authenticated profile-picture overwrite via unchecked username

Published Feb 7, 2020 · Updated Aug 4, 2024

Missing authorization in Bludit 3.10.0 allows remote authenticated users to replace another account's profile picture through an admin endpoint. The ajax/profile-picture-upload.php handler accepts a client-controlled username and begins the upload without verifying authority over the named account. Editor-level access is sufficient, and successful exploitation overwrites another user's displayed profile image without changing broader account privileges.

CVSS severity4.3
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Bludit 3.10.0 allows remote authenticated users to replace another account's profile picture through an admin endpoint. The ajax/profile-picture-upload.php handler accepts a client-controlled username and begins the upload without verifying authority over the named account. Editor-level access is sufficient, and successful exploitation overwrites another user's displayed profile image without changing broader account privileges.

The record

CVE
CVE-2020-8811
Published
Feb 7, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1491.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 7, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1491.002External Defacement

Public exploit references

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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