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CVE-2026-101110

CRITICAL
9.8NVD

Summary

generated automatically from NVD data

The Book Library (Free) extension for Joomla by ordasoft.com, in versions before 6.4.6, has an unauthenticated SQL injection (CWE-89) in the books() function of site/booklibrary.php. The field and direction request parameters pass through protectInjectionWithoutQuote(), a keyword blacklist that merely quotes values containing "select", and the result is concatenated into an unquoted ORDER BY clause where quoting offers no protection. Exploitation requires a priming request to set session sort defaults plus a trailing decoy comment, and the flaw is rated CVSS 9.8 (CRITICAL).

NVD description

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.

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EPSS · FIRST.org

0.32%probability of exploitation in the next 30 days

Higher than 23% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

CVSS v3.1 Score

9.8
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Information

Published
28 sept. 2026
Updated
7 oct. 2026
Status
Analyzed
Source
security@joomla.org

Affected products

ordasoft book library
Versions : 6.4.6

Weaknesses (CWE)

CWE-89

References (1)

Similar CVEs

Other vulnerabilities of type CWE-89

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