CVE-2024-28434Public exploitNetwork attack vector

Stored XSS via executable SVG file upload

Published Mar 25, 2024 · Updated Aug 28, 2024

Stored cross-site scripting in Twenty 0.3.0 allows remote attackers to execute JavaScript in a victim's browser through an uploaded SVG file. The Files tab accepts and stores SVG content containing script elements, then serves the file so a browser executes that JavaScript. Exploitation requires a victim to open the uploaded file in a new tab, where the script runs in the application origin with the victim's browser privileges.

CVSS severity7.6
High
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Twenty 0.3.0 allows remote attackers to execute JavaScript in a victim's browser through an uploaded SVG file. The Files tab accepts and stores SVG content containing script elements, then serves the file so a browser executes that JavaScript. Exploitation requires a victim to open the uploaded file in a new tab, where the script runs in the application origin with the victim's browser privileges.

The record

CVE
CVE-2024-28434
Published
Mar 25, 2024
Updated
Aug 28, 2024
Vendor
Twenty
Product
Twenty
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=0.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Twenty · Twentyversion=0.3.0

Published CVSS scores

7.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
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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