CVE-2026-90575: PHPGurukul Small CRM Login Success login.php unserialize deserialization

Severity: low (CVSS 3.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-13 · updated 2026-09-16
Weakness: CWE-20

Description

A weakness has been identified in PHPGurukul Small CRM 4.0. This impacts the function unserialize of the file /crm/login.php of the component Login Success Handler. This manipulation of the argument geopluginURL causes deserialization. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is said to be difficult. The exploit has been made available to the public and could be used for attacks.

Affected products

PHPGurukul Small CRM: 4.0

References

https://github.com/JdExploit/small-crm-login-unserialize
https://phpgurukul.com/
https://vuldb.com/cve/CVE-2026-90575
https://vuldb.com/submit/913188
https://vuldb.com/vuln/403160
https://vuldb.com/vuln/403160/cti

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