# CVE-2026-105703: PHPGurukul User Registration & Login and User Management System Change Password change-password.php authorization

> Attackers can bypass authorization in the change password handler to modify user credentials without proper validation.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Oct 2026
- **Updated:** 6 Oct 2026
- **Also known as:** GHSA-cgmr-jfr8-jrp2

## What is CVE-2026-105703?

CVE-2026-105703 is a medium-severity missing authorization vulnerability in PHPGurukul User Registration & Login and User Management System, published on 6 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A vulnerability was determined in PHPGurukul User Registration & Login and User Management System 3.3. The impacted element is an unknown function of the file loginsystem/admin/change-password.php of the component Change Password Handler. This manipulation of the argument currentpassword causes incorrect authorization. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-863 (Incorrect Authorization), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-105703?


## How do I fix CVE-2026-105703?

No fix has been published for CVE-2026-105703 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-105703 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105703 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105703 and fix it if it is affected.

What it is: CVE-2026-105703 is a medium-severity missing authorization vulnerability in PHPGurukul User Registration & Login and User Management System, published on 6 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105703 exists.

Affected product: PHPGurukul User Registration & Login and User Management System. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-105703/ (Markdown: https://insights.sbomify.com/CVE-2026-105703/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105703
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105703
- OSV: https://osv.dev/vulnerability/CVE-2026-105703

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-105703/
Summaries are generated and may contain mistakes; the official description above is the record.