Session Hijacking via Reflected Cross-Site Scripting (XSS) in ChurchCRM EditEventAttendees.php EID Parameter
Published Feb 19, 2025
8.4
HIGHCVSS 4.0
EPSS 0.29%
Description
A vulnerability exists in ChurchCRM 5.13.0 that allows an attacker to execute arbitrary JavaScript in a victim's browser via Reflected Cross-Site Scripting (XSS) in the EditEventAttendees.php page. This requires Administration privileges and affects the EID parameter. The flaw allows an attacker to steal session cookies, perform actions on behalf of an authenticated user, and gain unauthorized access to the application.
Affected products
-
- Version ChurchCRM 5.13.0 and priorStatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
To mitigate this vulnerability, implement output encoding to prevent malicious script injection in user-controlled input fields, ensure that session cookies are set with the HttpOnly and Secure flags to protect them from client-side access, and validate and sanitize user input before reflecting it in web pages.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H/AU:Y/R:U/V:C/RE:L/U:Amber
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:L/U:Amber
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Feb 19, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (4 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.29% (0.00290) | 19.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.27% (0.00268) | 18.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00030) | 5.38th | v4 (v2025.03.14) |
| Feb 20, 2025 | 0.04% (0.00043) | 11.71th | v3 (v2023.03.01) |
References (1)
- https://github.com/ChurchCRM/CRM/issues/7250 ExploitIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/ChurchCRM/CRM/issues/7250 | ExploitIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.