CVE-2021-24499Known exploitationPublic exploitNetwork attack vector

Remote code execution via unvalidated AJAX uploads

Published Aug 9, 2021 · Updated Aug 3, 2024

Arbitrary file upload in AmentoTech Workreap before 2.2.2 allows remote attackers to execute PHP code through WordPress AJAX. The two uploader actions accept a supplied file without a nonce, authentication, filename sanitization, or file-type validation and save it under uploads/workreap-temp. No account or user interaction is required; successful upload places attacker-controlled PHP in a web-accessible directory and enables site takeover.

CVSS severity9.8
Critical
EPSS probability60.11%
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 AmentoTech Workreap before 2.2.2 allows remote attackers to execute PHP code through WordPress AJAX. The two uploader actions accept a supplied file without a nonce, authentication, filename sanitization, or file-type validation and save it under uploads/workreap-temp. No account or user interaction is required; successful upload places attacker-controlled PHP in a web-accessible directory and enables site takeover.

The record

CVE
CVE-2021-24499
Published
Aug 9, 2021
Updated
Aug 3, 2024
Vendor
AmentoTech
Product
Workreap
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

  1. Affected versionversion=2.2.2 <2.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AmentoTech · Workreapversion=2.2.2 <2.2.2

Published CVSS scores

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.

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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
T1505.003Server Software Component: Web Shell

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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