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Vulnerability record · CVE-2026-100876 · published 27 September 2026

CVE-2026-100876: Improper authentication vulnerability

A vulnerability was found in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. Affected is an unknown function of the file loginlinkstudent.php. Performing a manipulation of the argument umail results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The vendor was contacted early about this disclosure but did not respond in any way.

2.1 CVSS 4.0 Low CWE-287 · Improper authenticationCWE-306 · Missing authentication for critical function Received
2.1CVSS 4.0 base score, v2 6.5
—EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
27 Sep 2026Last modified by NVD

Description

A vulnerability was found in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. Affected is an unknown function of the file loginlinkstudent.php. Performing a manipulation of the argument umail results in missing authentication. Remote exploitation of the attack is possible. The exploit has been made public and could be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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:

References

LinkTags
https://github.com/rmsbpro/Advisory/blob/main/broken-role-segregation.md
https://vuldb.com/cve/CVE-2026-100876
https://vuldb.com/submit/915442
https://vuldb.com/vuln/410806
https://vuldb.com/vuln/410806/cti

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Source: NIST National Vulnerability Database (record CVE-2026-100876), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.