CVE-2024-33253Public exploitNetwork attack vector

Victim-browser script execution via unsanitized badge fields

Published Jun 13, 2024 · Updated Aug 2, 2024

Stored cross-site scripting in GUnet Open eClass Platform 3.15 and earlier allows remote authenticated users to run script in a victim's browser. The certbadge.php badge-template path stores title and description input without neutralizing it before later page generation. Badge-template editing access is required, and execution occurs when another user views the saved badge content.

CVSS severity5.4
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in GUnet Open eClass Platform 3.15 and earlier allows remote authenticated users to run script in a victim's browser. The certbadge.php badge-template path stores title and description input without neutralizing it before later page generation. Badge-template editing access is required, and execution occurs when another user views the saved badge content.

The record

CVE
CVE-2024-33253
Published
Jun 13, 2024
Updated
Aug 2, 2024
Vendor
GUnet
Product
Open eClass Platform
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=0 <=3.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GUnet · Open eClass Platformversion=0 <=3.15

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

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

Public exploit references

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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