CVE-2023-25347Public exploitNetwork attack vector

Stored JavaScript execution via unescaped event title

Published Apr 25, 2023 · Updated Feb 4, 2025

Stored XSS in ChurchCRM 4.5.3 allows remote authenticated users to execute arbitrary JavaScript through a crafted event title. EventEditor.php stores the Title field without neutralizing an injected quote and event-handler attributes, then places the value into the event-editing page. An account able to add events must save the crafted title, and another user must reopen the event in the editor, where the script runs in that user's browser session.

CVSS severity5.4
Medium
EPSS probability0.62%
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 ChurchCRM 4.5.3 allows remote authenticated users to execute arbitrary JavaScript through a crafted event title. EventEditor.php stores the Title field without neutralizing an injected quote and event-handler attributes, then places the value into the event-editing page. An account able to add events must save the crafted title, and another user must reopen the event in the editor, where the script runs in that user's browser session.

The record

CVE
CVE-2023-25347
Published
Apr 25, 2023
Updated
Feb 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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-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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