CVE-2021-24321: Bello < 1.6.0 - Unauthenticated Blind SQL Injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 66.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-06-01 · updated 2026-06-17
Weakness: CWE-89

Description

The Bello - Directory & Listing WordPress theme before 1.6.0 did not sanitise the bt_bb_listing_field_price_range_to, bt_bb_listing_field_now_open, bt_bb_listing_field_my_lng, listing_list_view and bt_bb_listing_field_my_lat parameters before using them in a SQL statement, leading to SQL Injection issues

Affected products

BoldThemes Bello - Directory & Listing: before 1.6.0 — fixed in 1.6.0

How to fix

Upgrade to a fixed version: BoldThemes Bello - Directory & Listing 1.6.0. Check the vendor advisory for mitigations.

References

https://m0ze.ru/vulnerability/%5B2021-03-21%5D-%5BWordPress%5D-%5BCWE-89%5D-Bello-WordPress-Theme-v1.5.9.txt
https://wpscan.com/vulnerability/7314f9fa-c047-4e0c-b145-940240a50c02
https://m0ze.ru/vulnerability/%5B2021-03-21%5D-%5BWordPress%5D-%5BCWE-89%5D-Bello-WordPress-Theme-v1.5.9.txt
https://wpscan.com/vulnerability/7314f9fa-c047-4e0c-b145-940240a50c02

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