by Kastro
Paper/Archive/CVE-2026-33135

CVE-2026-33135

LabRedesCefetRJ WeGIA — WeGIA has Reflected Cross-Site Scripting (XSS) in `novo_memorandoo.php` via `sccs` parameter

EPSS 0.2%public exploitCVSS 9.3
critical.is priorityof 100
41
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 13.6.136 × 202.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

WeGIA is a web manager for charitable institutions. Versions 3.6.6 and below have a Reflected Cross-Site Scripting (XSS) vulnerability in the novo_memorandoo.php endpoint. An attacker can inject arbitrary JavaScript into the sccs GET parameter, which is directly echoed into the HTML response without any sanitization or encoding. The script /html/memorando/novo_memorandoo.php reads HTTP GET parameters to display dynamic success messages to the user. At approximately line 273, the code checks if $_GET['msg'] equals 'success'. If true, it directly concatenates $_GET['sccs'] into an HTML alert <div> and outputs it to the browser. This issue has been fixed in version 3.6.7.

Affected

ProductAffectedFixed inSource
WeGIA< 3.6.7–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-w5rv-5884-w94vrefgithub.com/LabRedesCefetRJ/WeGIA/pull/1459refgithub.com/LabRedesCefetRJ/WeGIA/releases/tag/3.6.7