CVE-2025-65734Public exploitNetwork attack vector

Stored XSS via unsanitized SVG assignment upload

Published Mar 16, 2026 · Updated Mar 16, 2026

Stored XSS in Open eClass 3.11 through 3.12 allows remote authenticated users to execute script via a crafted SVG assignment upload. The Courses/Work Assignments upload path accepts active SVG content without neutralizing embedded script before the file is rendered in another user's browser. Assignment-submission access and interaction by a second user are required; consequences are limited to data and actions available in that browser session.

CVSS severity5.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Open eClass 3.11 through 3.12 allows remote authenticated users to execute script via a crafted SVG assignment upload. The Courses/Work Assignments upload path accepts active SVG content without neutralizing embedded script before the file is rendered in another user's browser. Assignment-submission access and interaction by a second user are required; consequences are limited to data and actions available in that browser session.

The record

CVE
CVE-2025-65734
Published
Mar 16, 2026
Updated
Mar 16, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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')
T1190Exploit Public-Facing Application

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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