CVE-2026-1154Public exploitNetwork attack vector

Stored script execution via unrestricted SVG upload

Published Jan 19, 2026 · Updated Jan 19, 2026

Stored XSS in SourceCodester eLearning System 1.0 allows remote attackers to execute script in a viewer via a crafted SVG lesson file. The lesson upload handler accepts SVG files without content or type validation, stores them, and serves them to a browser through view=viewpdf. Execution requires a victim to open the uploaded lesson in the built-in viewer, where embedded SVG JavaScript runs in that victim's session.

CVSS severity5.4
Medium
EPSS probability0.39%
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 SourceCodester eLearning System 1.0 allows remote attackers to execute script in a viewer via a crafted SVG lesson file. The lesson upload handler accepts SVG files without content or type validation, stores them, and serves them to a browser through view=viewpdf. Execution requires a victim to open the uploaded lesson in the built-in viewer, where embedded SVG JavaScript runs in that victim's session.

The record

CVE
CVE-2026-1154
Published
Jan 19, 2026
Updated
Jan 19, 2026
Vendor
Online Computer and Laptop Store Project
Product
eLearning System
Classifications
CWE-80, CWE-74, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 19, 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Online Computer and Laptop Store Project · eLearning Systemversion=1.0

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.4NIST NVDCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.007Command and Scripting Interpreter: JavaScript

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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