CVE-2026-33135: LabRedesCefetRJ WeGIA · Cross-site Scripting
Affects LabRedesCefetRJ WeGIASource CVE Database V5
Not known to be exploited · CVSS 9.3 Critical : upgrade to 3.6.7 as a priority.
Data as of 1 Nov 2026, 08:20 UTC
Contested
Critical score, yet low EPSS after six months- EPSS
- 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.6.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 20 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
Upgrade WeGIA and labredescefetrj/WeGIA to 3.6.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LabRedesCefetRJWeGIA | Affected
| Fixed in
|
GitHublabredescefetrj/WeGIApkg:github/labredescefetrj/WeGIAOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Upgrade WeGIA to version 3.6.7 or later immediately to apply the official patch that fixes the XSS vulnerability.
- Implement strict input validation on all user-supplied data, especially GET parameters, to reject or sanitize unexpected characters.
- Apply proper output encoding (e.g., HTML entity encoding) when reflecting user input in HTML contexts to prevent script injection.
- Employ Content Security Policy (CSP) headers to restrict execution of unauthorized scripts and reduce impact of XSS attacks.
- Conduct regular security code reviews and penetration testing focusing on input handling and output encoding.
- Educate users and staff about the risks of clicking untrusted links, especially those containing suspicious URL parameters.
- Monitor web server logs for unusual or suspicious requests targeting the novo_memorandoo.php endpoint with 'msg=success' and unusual 'sccs' parameter values.
- Consider implementing Web Application Firewalls (WAFs) with rules to detect and block reflected XSS attack patterns targeting this endpoint.
Description
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.