Arbitrary file upload in Limesurvey
CVE-2021-44967
A Remote Code Execution (RCE) vulnerabilty exists in LimeSurvey 5.2.4 via the upload and install plugins function, which could let a remote malicious user upload an arbitrary PHP code file. NOTE: the Supplier's position is that plugins intentionally can contain arbitrary PHP code, and can only be installed by a superadmin, and therefore the security model is not violated by this finding.
Vulnerability class: Unrestricted File Upload
EPSS: 0.134 (96.0th 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
- Limesurvey — versions 5.2.4
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2021-44967?
- CVE-2021-44967 is a high-severity vulnerability in Limesurvey, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-02-24.
- How severe is CVE-2021-44967?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-44967 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.