Security readout for executives and security teams
Plain-English summary
This CVE describes a reported way for a LimeSurvey 5.2.4 superadmin to upload a plugin containing PHP code, resulting in server-side code execution. The vendor position is that this is intentional plugin behavior and requires superadmin rights, so the issue is disputed as a security violation.
Executive priority
Treat this as an administrative-control risk rather than a confirmed unauthenticated emergency. Prioritize if LimeSurvey is internet-accessible, superadmin accounts are shared, or plugin governance is weak.
Technical view
The report concerns LimeSurvey 5.2.4 plugin upload and installation handling, where a plugin package can include arbitrary PHP code. Public Exploit-DB and GitHub references exist. The source bundle does not provide CVSS, CWE, affected version range, patch details, or evidence of unauthenticated exploitation.
Likely exposure
Exposure is most relevant where LimeSurvey 5.2.4 is deployed and plugin installation is available to superadmin users. The bundle does not establish broader affected versions. Risk depends heavily on superadmin account compromise, misuse, or weak administrative governance.
Exploitation context
Public exploit references exist, but CISA KEV is false and the provided sources do not state active exploitation. The vendor disputes the finding because plugins can intentionally contain PHP and only superadmins can install them.
Researcher notes
Evidence is limited and disputed. The core behavior appears tied to plugin extensibility under superadmin control. Do not assume a vendor patch or wider version impact from the provided bundle alone.
Mitigation direction
- Check LimeSurvey vendor guidance for current security recommendations and supported versions.
- Restrict superadmin access to trusted personnel only.
- Audit installed plugins and remove untrusted or unnecessary plugins.
- Monitor administrative plugin upload and installation activity.
- Harden authentication for LimeSurvey administrator accounts.
Validation and detection
- Inventory LimeSurvey instances and identify any running version 5.2.4.
- Confirm who has superadmin privileges on each instance.
- Review installed plugins for unexpected or untrusted additions.
- Check administrative logs for plugin upload or installation events.
- Verify whether vendor guidance identifies an applicable update or configuration change.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-44967 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.exploit-db.com/exploits/50573CVE reference
- https://github.com/Y1LD1R1M-1337/Limesurvey-RCECVE reference
- https://www.limesurvey.org/manual/Plugins_-_advancedCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.