CVE-2020-11455

CRITICALNVD 9.89.8—Weaponized

9.8

LimeSurvey before 4.1.12+200324 contains a path traversal vulnerability in application/controllers/admin/LimeSurveyFileManager.php.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 99.8%
KEV: Not listed

Published

April 1, 2020

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated May 27, 2026

🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_commit.

generic🟡 PoC Available

LimeSurvey 4.1.11 - 'File Manager' Path Traversal - PHP webapps Exploit

https://www.exploit-db.com/exploits/48297

github_commit

commit daf50ebb1657 (LimeSurvey/LimeSurvey)

Fix landed in LimeSurvey/LimeSurvey commit daf50ebb1657 — awaiting tagged release

https://github.com/LimeSurvey/LimeSurvey/commit/daf50ebb16574badfb7ae0b8526ddc5871378f1b

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-22Path Traversal

Data Freshness Timeline

(refreshed 5× in last 7d / 12× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 22:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-27 05:44 UTCEG score recompute
2026-05-27 05:44 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-23 17:35 UTCOSV refresh

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-48297✓ verified
First seen Apr 6, 2020
LimeSurvey 4.1.11 - 'File Manager' Path Traversal
Open source ↗
Metasploitauxiliary/scanner/http/limesurvey_zip_traversals✓ verified
First seen Apr 2, 2020
LimeSurvey Zip Path Traversals
Open source ↗
Nucleihttp/cves/2020/CVE-2020-11455.yaml
First seen Jan 1, 2020
LimeSurvey 4.1.11 - Local File Inclusion
Open source ↗

Frequently asked(5)

What is CVE-2020-11455?

CVE-2020-11455 is a critical vulnerability published on April 1, 2020. LimeSurvey before 4.1.12+200324 contains a path traversal vulnerability in application/controllers/admin/LimeSurveyFileManager.php.

When was CVE-2020-11455 disclosed?

CVE-2020-11455 was first published in the National Vulnerability Database on April 1, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-11455 actively exploited?

CVE-2020-11455 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-11455?

CVE-2020-11455 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-11455?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-11455, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-11455

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CVE-2020-11455

📅 Published

🔄 Last Modified

📋 Advisory Details (2)