CVE-2026-4355Network attack vector

Authenticated script injection via unescaped Name parameter

Published Mar 17, 2026 · Updated Mar 17, 2026

Reflected XSS in Portábilis school-management platform 2.11 lets remote authenticated users inject script through a crafted Name query parameter. The /intranet/educar_servidor_curso_lst.php endpoint inserts attacker-controlled Name values into generated HTML without contextual output encoding. Exploitation requires a low-privileged account and victim interaction; injected script executes in the victim's browser and can modify displayed content.

CVSS severity3.5
Low
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

Reflected XSS in Portábilis school-management platform 2.11 lets remote authenticated users inject script through a crafted Name query parameter. The /intranet/educar_servidor_curso_lst.php endpoint inserts attacker-controlled Name values into generated HTML without contextual output encoding. Exploitation requires a low-privileged account and victim interaction; injected script executes in the victim's browser and can modify displayed content.

The record

CVE
CVE-2026-4355
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
Portábilis
Product
i-Educar
Classifications
CWE-94, CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 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=2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Portábilis · i-Educarversion=2.11

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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