CVE-2023-33661Public exploitNetwork attack vector

Script execution via unescaped report parameters

Published Jun 28, 2023 · Updated Nov 27, 2024

Reflected XSS in ChurchCRM 4.5.3 allows remote attackers to execute script in a user's browser through GroupReports.php parameters. GroupReports.php places the GroupRole, ReportModel, and OnlyCart hidden-parameter values into generated page output without neutralizing script markup. A victim must open an attacker-crafted request; the script then runs in the ChurchCRM origin and can access browser-held session data.

CVSS severity6.1
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in ChurchCRM 4.5.3 allows remote attackers to execute script in a user's browser through GroupReports.php parameters. GroupReports.php places the GroupRole, ReportModel, and OnlyCart hidden-parameter values into generated page output without neutralizing script markup. A victim must open an attacker-crafted request; the script then runs in the ChurchCRM origin and can access browser-held session data.

The record

CVE
CVE-2023-33661
Published
Jun 28, 2023
Updated
Nov 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1185
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NVDCVSS: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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1185Browser Session Cookie

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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