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
EPSS: 0.105 (95.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Churchdb Churchinfo
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Product)
- cve@mitre.org (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.