CVE-2026-90575: Input Validation Flaw (CVSS 3.7)

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.

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CVSS v3.1 Score

3.7

LOW

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

EPSS — Exploit Prediction

0.0046

Probability of exploitation

0.39%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation

CWE-502 Deserialization of Untrusted Data

References

Other 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

Frequently Asked Questions

What is CVE-2026-90575? +

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. It has a CVSS v3.1 base score of 3.7 (LOW).

How severe is CVE-2026-90575? +

CVE-2026-90575 has a CVSS v3.1 score of 3.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0046, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90575? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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