---
id: CVE-2026-101110
title: >-
  Joomla Extension - ordasoft.com - Unauthenticated SQL Injection in Book
  Library (Free) < 6.4.6 - site/booklibrary.php’s books() function reads the
  field and direction request parameters and passes each through a function
  called protectIn…
summary: >-
  Joomla Extension - ordasoft.com - Unauthenticated SQL Injection in Book
  Library (Free) < 6.4.6 - site/booklibrary.php’s books() function reads the
  field and direction request parameters and passes each through a function
  called protectIn…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-89
vendor: ordasoft.com
product: com_booklibrary
affected:
  - com_booklibrary 1.0.0-6.4.6
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T19:16:47.243'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101110'
references:
  - url: 'https://www.ordasoft.com/'
    label: security@joomla.org
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-09-28T19:19:07.731Z'
---

## Overview

Joomla Extension - ordasoft.com - Unauthenticated SQL Injection in Book Library (Free) < 6.4.6 - site/booklibrary.php’s books() function reads the field and direction request parameters and passes each through a function called protectInjectionWithoutQuote(), whose only real protection is a keyword blacklist that, on detecting the literal substring select, wraps the value in $db->quote() instead of rejecting it. The value is then concatenated directly into an unquoted ORDER BY clause, a position where quoting provides no protection at all. Reaching the vulnerable code path requires two conditions: a first request to prime session-stored sort defaults, and a trailing decoy comment (-- xselect) that satisfies the blacklist’s substring check without altering the payload’s effect.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.