CVE-2024-27665Public exploitNetwork attack vector

Stored XSS via malicious Syllabus PDF upload

Published Apr 9, 2024 · Updated Nov 21, 2024

Stored XSS in Unifiedtransform 2.X allows remote authenticated users to execute scripts through a Syllabus file upload. The Syllabus upload path accepts a PDF containing an XSS payload and later serves it for download without neutralizing the embedded script. Exploitation requires an authenticated upload and a user downloading the file, after which the injected script executes in that user's browser context.

CVSS severity5.4
Medium
EPSS probability0.43%
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 Unifiedtransform 2.X allows remote authenticated users to execute scripts through a Syllabus file upload. The Syllabus upload path accepts a PDF containing an XSS payload and later serves it for download without neutralizing the embedded script. Exploitation requires an authenticated upload and a user downloading the file, after which the injected script executes in that user's browser context.

The record

CVE
CVE-2024-27665
Published
Apr 9, 2024
Updated
Nov 21, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1204.002, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 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 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.

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

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')
T1204.002User Execution: Malicious File
T1059.007Command and Scripting Interpreter: JavaScript/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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