CVE-2020-24930Public exploitNetwork attack vector

Authenticated file deletion via attachment path traversal

Published Sep 27, 2021 · Updated Aug 4, 2024

Path traversal in Wuzhi CMS 4.0.1 and 4.1.0 allows remote authenticated users to delete arbitrary server files via a crafted URL. The attachment backend's coreframe/app/attachment/admin/index.php del() method joins an unchecked relative path to ATTACHMENT_ROOT and passes it to my_unlink. Backend login is required; filesystem permissions bound the reachable files, and deletion causes data loss or service interruption.

CVSS severity8.1
High
EPSS probability1.13%
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 Wuzhi CMS 4.0.1 and 4.1.0 allows remote authenticated users to delete arbitrary server files via a crafted URL. The attachment backend's coreframe/app/attachment/admin/index.php del() method joins an unchecked relative path to ATTACHMENT_ROOT and passes it to my_unlink. Backend login is required; filesystem permissions bound the reachable files, and deletion causes data loss or service interruption.

The record

CVE
CVE-2020-24930
Published
Sep 27, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 2021CVE 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:P
8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1485Data Destruction

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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