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Book Library security vulnerabilities

mySites.guru tracks 2 vulnerabilities in Book Library (com_booklibrary), covering 2 CVEs. Every connected Joomla site is checked against them on each audit.

Is my site affected?

Your site is affected if it runs Book Library in this range:

  • before 6.4.6
Latest safe version
6.4.6 or later. No rule we check matches that release or any newer one.
What to do
Update Book Library to 6.4.6 or later from the vendor, then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
Check whether your sites are affected

Every Book Library vulnerability we track

Newest first. CVSS is the score published in each CVE record, where it has one; the severity column is the rating our check uses.

CVEAffected versionsFixed inSeverityAdded
CVE-2026-101110CVSS 9.3before 6.4.66.4.6Critical2026-09-28
CVE-2026-101111CVSS 5.3before 6.4.66.4.6Medium2026-09-28

What we check for

CriticalCVE-2026-1011102026-09-28

Book Library (com_booklibrary) below 6.4.6 - Unauthenticated SQL Injection

Book Library by OrdaSoft before 6.4.6 passes the field and direction request parameters of its public book listing through protectInjectionWithoutQuote(), a keyword blacklist that quotes rather than rejects a suspicious value, and then concatenates the result into an unquoted ORDER BY clause where quoting gives no protection. No login is needed. CVE-2026-101110, CVSS 4.0 9.3 Critical. The CVE record names the Free edition; the Pro and ShopPro editions share the element and version numbering. The record title gives the fix as 6.4.6 while its affected range runs to 6.4.6; update to the newest release OrdaSoft offers. If you cannot update, disable the component until you can.

Affected versions: < 6.4.6

Full advisory: our disclosure post

MediumCVE-2026-1011112026-09-28

Book Library (com_booklibrary) below 6.4.6 - Reflected Cross-Site Scripting

Book Library by OrdaSoft before 6.4.6 echoes the raw title request parameter into a double-quoted HTML attribute on the public book page (site/views/view_book/tmpl/default.php) with no escaping, so a crafted link runs script in the browser of whoever opens it. CVE-2026-101111, CVSS 4.0 5.3 Medium. Update to the newest release OrdaSoft offers.

Affected versions: < 6.4.6

Full advisory: our disclosure post

Timeline

  1. 28 September 2026Check added for CVE-2026-101110 (before 6.4.6)
  2. 28 September 2026Check added for CVE-2026-101111 (before 6.4.6)
  3. 28 September 2026CVE-2026-101110 record published
  4. 28 September 2026CVE-2026-101111 record published

References

Each CVE page above links its official cve.org record and its NVD entry.

Book Library vulnerability questions

Which versions of Book Library are vulnerable?
mySites.guru tracks 2 vulnerabilities in Book Library (com_booklibrary). A site is affected if its installed version is in this range: before 6.4.6.
What is the latest safe version of Book Library?
6.4.6. Every vulnerability tracked here is fixed by 6.4.6, and no rule we check matches that release or any later one.
How do I check which version of Book Library my Joomla site runs?
The installed version is listed on the Joomla administrator's Extensions: Manage screen; search it for com_booklibrary. mySites.guru reads the installed version on every audit of a connected site and checks it against these rules.

Running Book Library on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

CVE identifiers: CVE-2026-101110, CVE-2026-101111. Rules current as of 20 October 2026.