CVE-2026-6486

LOW EPSS 11.5%
Published Apr 17, 20262mo ago · Modified Jun 17, 20262w ago
2.0 CVSS 4.0
Low
Find Similar
Published Apr 17, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
2.0
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
11.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-79 Cross-site Scripting Injection
CWE-94 Improper Control of Generation of Code (Code Injection) Injection

References 8

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.