CVE-2026-6486

LOW 3.5

classroombookings User Display Name layout.php read cross site scripting

CVSS Score

3.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79 CWE-94
Vendor	n/a
Product	classroombookings
Published	Apr 17, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / classroombookings

2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/358027 vuldb.com: https://vuldb.com/vuln/358027/cti vuldb.com: https://vuldb.com/submit/786154 github.com: https://github.com/sudo-secure/security-research/blob/main/classroombookings/stored-xss/PoC.md github.com: https://github.com/classroombookings/classroombookings/pull/83 github.com: https://github.com/classroombookings/classroombookings/commit/69c3c9bb8a17f1ea572d8f4502bf238f0214c98a github.com: https://github.com/classroombookings/classroombookings/releases/tag/v2.17.1 github.com: https://github.com/classroombookings/classroombookings/

Credits

🔍 sudosme (VulDB User) VulDB CNA Team