CVE-2020-11455Public exploitNetwork attack vector

Arbitrary file disclosure and deletion via path parameter

Published Apr 1, 2020 · Updated Aug 4, 2024

Path traversal in LimeSurvey before 4.1.12+200324 allows remote attackers to download and delete arbitrary server files. The getZipFile action accepts the request's path value as a filesystem path, sends that file because its file check is forced true, and then deletes it. Reachability is through the web application; deletion is limited by the web-service account's permissions but can remove a critical configuration file and interrupt service.

CVSS severity9.8
Critical
EPSS probability97.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in LimeSurvey before 4.1.12+200324 allows remote attackers to download and delete arbitrary server files. The getZipFile action accepts the request's path value as a filesystem path, sends that file because its file check is forced true, and then deletes it. Reachability is through the web application; deletion is limited by the web-service account's permissions but can remove a critical configuration file and interrupt service.

The record

CVE
CVE-2020-11455
Published
Apr 1, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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