CVE-2026-121501— mathurvishal CloudClassroom-PHP-Project loginlinkadmin.php session_regenerate_id session fixiation

Quick assessment

Affected

mathurvishal CloudClassroom-PHP-Project

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 mathurvishal 的 CloudClassroom-PHP-Project 中发现了一个漏洞。受影响的组件是文件 loginlinkadmin.php 中的 session_regenerate_id 函数。攻击者可通过篡改 PHPSESSID 参数引发会话固定（Session Fixation）攻击。该攻击可远程实施，且利用方法已公开披露，可能被恶意利用。该产品未采用版本管理机制，因此无法提供受影响或未受影响的具体版本信息。厂商已在此漏洞披露初期被联系，但至今未作出任何回应。

CVSS 6.3 · Medium Updated Nov 04, 2026

Possible ATT&CK Techniques 1 AI

T1538.003

Affected Version Matrix 3

Vendor	Product	Version Range	Status
mathurvishal	CloudClassroom-PHP-Project	`5dadec098bfbbf3300d60c3494db3fb95b66e7be`	affected
		`c46ce5736007d9d6e51a8feeb9250729fe85f139`	affected
		`dae0c5961a35a4faf28cde9e02117538f09f81c1`	affected

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Vulnerability Information

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Vulnerability Title

mathurvishal CloudClassroom-PHP-Project loginlinkadmin.php session_regenerate_id session fixiation

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was determined in mathurvishal CloudClassroom-PHP-Project. The affected element is the function session_regenerate_id of the file loginlinkadmin.php. Executing a manipulation of the argument PHPSESSID can lead to session fixiation. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

会话固定

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
mathurvishal	CloudClassroom-PHP-Project	5dadec098bfbbf3300d60c3494db3fb95b66e7be	`cpe:2.3:a:mathurvishal:cloudclassroom-php-project::::::::`

II. Public POCs for CVE-2026-121501

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-121501

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Other References for CVE-2026-121501 (5)

https://github.com/rmsbpro/Advisory/blob/main/session-fixation.md exploit
https://vuldb.com/cve/CVE-2026-121501 third-party-advisory
https://vuldb.com/vuln/430283/cti signature permissions-required
https://vuldb.com/vuln/430283 vdb-entry technical-description
https://vuldb.com/submit/1019357 third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-121501

IV. Related Vulnerabilities

Same product: CloudClassroom-PHP-Project

Same vendor: mathurvishal

Same weakness: CWE-384