CVE-2016-15033Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via unrestricted restore upload

Published Jun 7, 2023 · Updated Apr 8, 2026

Arbitrary file upload in Ganesh Chandra Delete All Comments 2.0 and earlier allows remote attackers to upload executable PHP files. The publicly reachable restore block in delete-all-comments.php trusts restorefromfileNAME as a destination name and writes bytes fetched from restorefromfileURL into the plugin's web-accessible backup directory. No authentication or user interaction is required; a downloaded PHP payload executes with the WordPress server's privileges.

CVSS severity9.8
Critical
EPSS probability2.33%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in Ganesh Chandra Delete All Comments 2.0 and earlier allows remote attackers to upload executable PHP files. The publicly reachable restore block in delete-all-comments.php trusts restorefromfileNAME as a destination name and writes bytes fetched from restorefromfileURL into the plugin's web-accessible backup directory. No authentication or user interaction is required; a downloaded PHP payload executes with the WordPress server's privileges.

The record

CVE
CVE-2016-15033
Published
Jun 7, 2023
Updated
Apr 8, 2026
Vendor
Ganesh Chandra
Product
Delete All Comments
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 2016Exploitation reportedObserved exploitation of the Delete All Comments restore handler
  2. Jun 7, 2023CVE publishedPublication date reported by the CVE source.
  3. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ganesh Chandra · Delete All Commentsversion=0 <=2.0

Published CVSS scores

9.8WordfenceCVSS: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.

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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
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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