CVE-2021-24362Public exploitNetwork attack vector

Stored XSS via unsanitized SVG gallery uploads

Published Aug 16, 2021 · Updated Aug 3, 2024

Stored XSS in Photo Gallery by 10Web before 1.5.75 allows remote authenticated users to execute JavaScript via uploaded SVG files. The gallery image upload handler stores SVG content without removing embedded scripts, and direct access under the plugin's uploads path causes a browser to execute it. Gallery image-upload permission and a victim opening the SVG URL are required, exposing browser-accessible data or modifying displayed content.

CVSS severity6.1
Medium
EPSS probability0.83%
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 Photo Gallery by 10Web before 1.5.75 allows remote authenticated users to execute JavaScript via uploaded SVG files. The gallery image upload handler stores SVG content without removing embedded scripts, and direct access under the plugin's uploads path causes a browser to execute it. Gallery image-upload permission and a victim opening the SVG URL are required, exposing browser-accessible data or modifying displayed content.

The record

CVE
CVE-2021-24362
Published
Aug 16, 2021
Updated
Aug 3, 2024
Vendor
10Web
Product
Photo Gallery by 10Web
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=1.5.75 <1.5.75

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

10Web · Photo Gallery by 10Webversion=1.5.75 <1.5.75

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS: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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Cross-site Scripting (XSS)
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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