9.8

CVE-2021-24240: Business Hours Pro <= 5.5.0 - Unauthenticated Arbitrary File Upload to RCE

Modified
Published 22-04-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-24240 is a critical (CVSS 9.8) vulnerability in aivahthemes business_hours_pro. EPSS estimates a 3.04% chance of exploitation in the next 30 days, higher than 87.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
3.04%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 22-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.04%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.04% on 23-09-2026

23-09-202623-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Aivahthemes1 product
Unknown1 product
Wordpress1 product
  • iva-business-hours-pro≤ 5.5.0

3 vendors · 3 products

References

3 links