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Vulnerabilities

Vulnerability · CVE-2021-24240

aivahthemes business_hours_pro Unrestricted Upload of File with Dangerous Type

Published Apr 2, 2021 · catalog updated Apr 2, 2021 · aivahthemes business_hours_pro Unrestricted Upload

Patch now

CVE-2021-24240 is in the CISA known-exploited catalog. Confirm aivahthemes business_hours_pro Unrestricted Upload against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (aivahthemes business_hours_pro Unrestricted Upload).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
3.04%
Remediation
Remediation guidance
Affected products
vendor aivahthemes business_hours_pro

The Business Hours Pro WordPress plugin through 5.5.0 allows a remote attacker to upload arbitrary files using its manual update functionality, leading to an unauthenticated remote code execution vulnerability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor aivahthemes business_hours_proversion unspecified

How to fix CVE-2021-24240

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-24240 is in the CISA known-exploited catalog. Confirm aivahthemes business_hours_pro Unrestricted Upload against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 3.04%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 2, 2021 · VulnCheck KEV

    Detected

    The Business Hours Pro WordPress plugin through 5.5.0 allows a remote attacker to upload arbitrary files using its manual update functionality, leading to an unauthenticated remote code execution vulnerability.

  2. Apr 2, 2021 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2021-24240

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-24240

    30-day exploitation probability 3.0%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2021-24240

    The Business Hours Pro WordPress plugin through 5.5.0 allows a remote attacker to upload arbitrary files using its manual update functionality, leading to an unauthenticated remote code execution vulnerability.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.