CVE-2024-51142Public exploitNetwork attack vector

Stored script execution via unfiltered storage key

Published Nov 15, 2024 · Updated Nov 15, 2024

Stored XSS in Chamilo LMS 1.11.26 and earlier allows remote attackers to execute JavaScript in another user's browser via storageapi.php. storageapi.php accepts svuser=0 because storage_can_set equates it with the unauthenticated session ID, then returns stored svkey data without XSS neutralization. No account is required to plant the payload, but another user must load the stored data for the script to run in that user's browser.

CVSS severity5.4
Medium
EPSS probability0.34%
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 Chamilo LMS 1.11.26 and earlier allows remote attackers to execute JavaScript in another user's browser via storageapi.php. storageapi.php accepts svuser=0 because storage_can_set equates it with the unauthenticated session ID, then returns stored svkey data without XSS neutralization. No account is required to plant the payload, but another user must load the stored data for the script to run in that user's browser.

The record

CVE
CVE-2024-51142
Published
Nov 15, 2024
Updated
Nov 15, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

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 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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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