Arbitrary file upload in Churchdb Churchinfo
CVE-2021-43258
CartView.php in ChurchInfo 1.3.0 allows attackers to achieve remote code execution through insecure uploads. This requires authenticated access tot he ChurchInfo application. Once authenticated, a user can add names to their cart, and compose an email. Uploading an attachment for the email stores the attachment on the site in the /tmp_attach/ folder where it can be accessed with a GET request. There are no limitations on files that can be attached, allowing for malicious PHP code to be uploaded and interpreted by the server.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.116 (95.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.110 · newest: 0.116 · change: +0.006
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.churchdb.org/ (Product)
- sourceforge.net/projects/churchinfo/files/ (Product)
- github.com/rapid7/metasploit-framework/pull/17257 (Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-43258?
- CVE-2021-43258 is a high-severity vulnerability in Churchdb Churchinfo, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-11-23.
- How severe is CVE-2021-43258?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-43258 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.