CVE-2026-6486

Description

A vulnerability was detected in classroombookings up to 2.17.0. This impacts the function read of the file crbs-core/application/views/layout.php of the component User Display Name Handler. The manipulation of the argument displayname results in cross site scripting. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version 2.17.1 will fix this issue. The patch is identified as 69c3c9bb8a17f1ea572d8f4502bf238f0214c98a. It is suggested to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

PUBLISHED Reserved 2026-04-17 | Published 2026-04-17 | Updated 2026-04-18 | Assigner VulDB

Problem types

Cross Site Scripting

Code Injection

Timeline

Credits

sudosme (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/358027 (VDB-358027 | classroombookings User Display Name layout.php read cross site scripting) vdb-entry technical-description

vuldb.com/vuln/358027/cti (VDB-358027 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/786154 (Submit #786154 | Craig A Rodway classroombookings 2.16.4 Stored Cross-Site Scripting (XSS)) third-party-advisory

github.com/.../blob/main/classroombookings/stored-xss/PoC.md exploit

github.com/classroombookings/classroombookings/pull/83 issue-tracking patch

github.com/...ommit/69c3c9bb8a17f1ea572d8f4502bf238f0214c98a patch

github.com/...ookings/classroombookings/releases/tag/v2.17.1 patch

github.com/classroombookings/classroombookings/ product

cve.org (CVE-2026-6486)

nvd.nist.gov (CVE-2026-6486)

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