NVD / CVE Program· CNA mitre

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

Noroxi assessment

Priority: Monitor (action score 39/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 13.5% (FIRST EPSS); higher than 96.4% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 8.8 · v3.1—Proof of concept No fix recorded

Published: Feb 24, 2022
Updated: Jun 17, 2026
EPSS: 13.5% · 96th percentile
CWE: CWE-434

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 4 / 30 · 13.5%

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
limesurvey	limesurvey	cpe:2.3:a:limesurvey:limesurvey

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

limesurvey limesurvey5.2.4

Same product

limesurvey: all records

Other highest-scoring records for the same primary product.

CVE-2020-11455LimeSurvey before 4.1.12+200324 contains a path traversal vulnerability in application/controllers/admin/LimeSurveyFileManager.php.
68This week
CVE-2019-9960The downloadZip function in application/controllers/admin/export.php in LimeSurvey through 3.16.1+190225 allows a relative path.
60This week
CVE-2007-3632Multiple PHP remote file inclusion vulnerabilities in LimeSurvey (aka PHPSurveyor) 1.49RC2 allow remote attackers to execute arbitrary PHP c
45Plan

Published before and after this one in the same product

← EarlierCVE-2021-42112Oct 8, 2021 · The "File upload question" functionality in LimeSurvey 3.x-LTS through 3.27.18 allows XSS in assets/scripts/modaldialog.js and assets/script
24Monitor
← EarlierCVE-2018-10228Dec 14, 2021 · Cross-site scripting (XSS) vulnerability in /application/controller/admin/theme.php in LimeSurvey 3.6.2+180406 allows remote attackers to in
24Monitor
Later →CVE-2022-29710May 24, 2022 · A cross-site scripting (XSS) vulnerability in uploadConfirm.php of LimeSurvey v5.3.9 and below allows attackers to execute arbitrary web scr
24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×3

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:6	2025-01-05
Proof-of-concept repository on GitHub	stars:1	2025-02-17
Proof-of-concept repository on GitHub	stars:1	2025-04-18

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedFeb 24, 2022
First PoCJan 5, 2025+1046 d
TodayNov 2, 2026+1712 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).