CVE-2020-25873Public exploitNetwork attack vector

Authenticated folder deletion via unvalidated backup path

Published Oct 29, 2021 · Updated Aug 4, 2024

Path traversal in Baijiacms V4 allows remote authenticated users to delete arbitrary server folders through a crafted id parameter. The delete branch in system/manager/class/web/database.php base64-decodes id, appends it to the backup root, and passes the unvalidated path to rmdirs. Access to the database-manager delete operation is required; parent-directory sequences can remove application folders and destroy the site.

CVSS severity6.5
Medium
EPSS probability1.17%
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 Baijiacms V4 allows remote authenticated users to delete arbitrary server folders through a crafted id parameter. The delete branch in system/manager/class/web/database.php base64-decodes id, appends it to the backup root, and passes the unvalidated path to rmdirs. Access to the database-manager delete operation is required; parent-directory sequences can remove application folders and destroy the site.

The record

CVE
CVE-2020-25873
Published
Oct 29, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 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

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.0NVDAV:N/AC:L/Au:S/C:N/I:P/A:N

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

Weakness, pattern, technique

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