CVE-2026-6486

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.

CVSS v3 3.5 LOW
CVSS v2.0 4.0 MEDIUM

3.5^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.1 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:P/A:N

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-04-17 13:16

Updated : 2026-06-17 11:00

NVD link : CVE-2026-6486

Mitre link : CVE-2026-6486

CVE.ORG link : CVE-2026-6486

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-94

Improper Control of Generation of Code ('Code Injection')

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{"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-06-17T11:00:52.210", "sourceIdentifier": "cna@vuldb.com"}