How severe is CVE-2021-44967?

CVE-2021-44967 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-44967 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44967?

CVE-2021-44967 affects Limesurvey. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44967?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-44967 published?

CVE-2021-44967 was published on 2022-02-24 and last updated on 2026-06-17.

CVE-2021-44967

CVE-2021-44967 is a high-severity vulnerability in Limesurvey with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Limesurvey
Published: 2022-02-24
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-44967?: CVE-2021-44967 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-44967 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44967?: CVE-2021-44967 affects Limesurvey. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44967?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-44967 published?: CVE-2021-44967 was published on 2022-02-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:limesurvey:limesurvey:5.2.4:*:*:*:*:*:*:*

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