3.3
LOW CVSS 2.0
CVE-2026-129251
hrshadhin CloudSchool Event Description EventController.php cross site scripting
Description

A vulnerability was detected in hrshadhin CloudSchool up to 3.0.1. This affects an unknown function of the file app/Http/Controllers/Backend/EventController.php of the component Event Description Handler. The manipulation of the argument data results in cross site scripting. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

INFO

Published Date :

Nov. 14, 2026, 12:17 p.m.

Last Modified :

Nov. 14, 2026, 12:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-129251 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Hrshadhin cloudschool
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 LOW [email protected]
CVSS 3.1 LOW [email protected]
CVSS 4.0 LOW [email protected]
Solution
Remediate the Cross-Site Scripting vulnerability in Event Description Handler.
  • Update hrshadhin CloudSchool to the latest version.
  • Apply security patches provided by the vendor.
  • Sanitize user input in Event Description Handler.
  • Validate data before processing in app/Http/Controllers/Backend/EventController.php.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-129251.

URL Resource
https://vuldb.com/cve/CVE-2026-129251
https://vuldb.com/submit/1042948
https://vuldb.com/vuln/437281
https://vuldb.com/vuln/437281/cti
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-129251 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-129251 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.