CVE-2026-42873Network attack vector

Technical detail disclosure via verbose upload errors

Published May 11, 2026 · Updated May 11, 2026

Improper error handling in WeGIA before 3.6.10 allows remote authenticated users to disclose technical details via a malicious file upload. The funcionario/docdependente_upload.php endpoint returns verbose diagnostic messages for rejected malicious content rather than a sanitized upload error. Low-privileged access to the upload workflow is required, and the exposed upload constraints or image-processing details support system footprinting and payload refinement.

CVSS severity0.0
None
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper error handling in WeGIA before 3.6.10 allows remote authenticated users to disclose technical details via a malicious file upload. The funcionario/docdependente_upload.php endpoint returns verbose diagnostic messages for rejected malicious content rather than a sanitized upload error. Low-privileged access to the upload workflow is required, and the exposed upload constraints or image-processing details support system footprinting and payload refinement.

The record

CVE
CVE-2026-42873
Published
May 11, 2026
Updated
May 11, 2026
Vendor
LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança
Product
WeGIA
Classifications
CWE-200, T1592.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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=< 3.6.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança · WeGIAversion=< 3.6.10

Published CVSS scores

0.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1592.002Gather Victim Host Information: Software

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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