CVE-2024-53771Network attack vector

Authenticated script execution in another user's browser

Published Nov 30, 2024 · Updated Apr 28, 2026

DOM-based XSS in sergiomico SimpleSchema Free 1.7.6.9 and earlier allows remote authenticated users to execute script in another user's browser. Patchstack has not published the affected client-side code path, DOM source, sink, or the untrusted value that reaches it. Exploitation requires low-privileged access and interaction by another user, with script execution confined to that user's browser context.

CVSS severity6.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DOM-based XSS in sergiomico SimpleSchema Free 1.7.6.9 and earlier allows remote authenticated users to execute script in another user's browser. Patchstack has not published the affected client-side code path, DOM source, sink, or the untrusted value that reaches it. Exploitation requires low-privileged access and interaction by another user, with script execution confined to that user's browser context.

The record

CVE
CVE-2024-53771
Published
Nov 30, 2024
Updated
Apr 28, 2026
Vendor
sergiomico
Product
SimpleSchema Free
Classifications
CWE-79, CAPEC-588, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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 <=1.7.6.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

sergiomico · SimpleSchema Freeversion=0 <=1.7.6.9

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based XSS
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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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