CVE-2024-54687Public exploitNetwork attack vector

Stored XSS via MIME-sniffed document upload

Published Jan 10, 2025 · Updated Jan 13, 2025

Stored XSS in Vtiger CRM 6.1 and earlier allows remote attackers to execute JavaScript by uploading a crafted document. CRMEntity.php's uploadAndSaveFile function rejects only blacklisted extensions, leaving other uploaded files web-accessible without nosniff protection, so browsers interpret embedded script. The payload runs only when a victim opens the uploaded file, exposing or altering data accessible to that browser session.

CVSS severity6.1
Medium
EPSS probability0.36%
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 Vtiger CRM 6.1 and earlier allows remote attackers to execute JavaScript by uploading a crafted document. CRMEntity.php's uploadAndSaveFile function rejects only blacklisted extensions, leaving other uploaded files web-accessible without nosniff protection, so browsers interpret embedded script. The payload runs only when a victim opens the uploaded file, exposing or altering data accessible to that browser session.

The record

CVE
CVE-2024-54687
Published
Jan 10, 2025
Updated
Jan 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2025Record 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

6.1CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/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')
T1189Drive-by Compromise

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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