CVE-2024-6393Public exploitNetwork attack vector

Stored XSS via unsanitized image descriptions

Published Nov 25, 2024 · Updated Nov 25, 2024

Stored XSS in NextGEN Gallery before 3.59.5 allows remote authenticated users to execute script through an image Description field. The image editor stores the Description value without sufficient sanitization or output escaping, and a NextGEN Gallery block later renders it into an embedded gallery. Administrator-level access is required, and script execution occurs when another user clicks the crafted image; the flaw remains reachable when unfiltered_html is disabled.

CVSS severity4.8
Medium
EPSS probability0.47%
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 NextGEN Gallery before 3.59.5 allows remote authenticated users to execute script through an image Description field. The image editor stores the Description value without sufficient sanitization or output escaping, and a NextGEN Gallery block later renders it into an embedded gallery. Administrator-level access is required, and script execution occurs when another user clicks the crafted image; the flaw remains reachable when unfiltered_html is disabled.

The record

CVE
CVE-2024-6393
Published
Nov 25, 2024
Updated
Nov 25, 2024
Vendor
Sandhills Development, LLC
Product
NextGEN Gallery
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.59.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Sandhills Development, LLC · NextGEN Galleryversion=0 <3.59.5

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
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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