# CVE-2026-60092: AVideo - Stored Cross-Site Scripting via Unescaped User-Agent in Participants Panel

> An anonymous attacker can inject JavaScript via the User-Agent header in public meetings, leading to script execution in the meeting host's browser session.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Jul 2026
- **Updated:** 8 Oct 2026
- **Also known as:** GHSA-4f8v-jp98-cpv3, GHSA-7cqp-7cfv-6c3q

## What is CVE-2026-60092?

CVE-2026-60092 is a medium-severity cross-site scripting vulnerability in AVideo, published on 8 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

AVideo (Meet plugin) through commit e8d6119f3cb1b849149906efeb0a41fc024f59f8 contains a stored cross-site scripting vulnerability in the Meet plugin's getMeetInfo.json.php endpoint. When a participant joins a public meeting, the raw HTTP User-Agent header is stored (meet_join_log.user_agent) without sanitization (bypassing AVideo's setter-level xss_esc() layer) and later echoed without output encoding (no htmlspecialchars()) in the Participants management panel, which is accessible to the meeting host and site administrators. An anonymous, unauthenticated attacker can join any public meeting while supplying a User-Agent header containing an HTML/JavaScript payload; the payload is persisted and executes in the privileged, authenticated browser session of the meeting host or a site administrator when they open the participant list. The issue was unpatched at the time of the report.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-60092?

2 open source packages ship an affected version, including wwbn/avideo.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `wwbn/avideo` | Packagist | All versions to 29.0 | None |
| `wwbn/avideo` | Packagist | All versions to 29.0 | None |

## How do I fix CVE-2026-60092?

No fix has been published for CVE-2026-60092 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-60092 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-60092 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-60092 and fix it if it is affected.

What it is: CVE-2026-60092 is a medium-severity cross-site scripting vulnerability in AVideo, published on 8 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-60092 exists.

Affected packages and fixed versions:
- wwbn/avideo (Packagist): affected all versions up to 29.0; no fix listed
- wwbn/avideo (Packagist): affected all versions up to 29.0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-60092/ (Markdown: https://insights.sbomify.com/CVE-2026-60092/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-60092
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-60092
- OSV: https://osv.dev/vulnerability/CVE-2026-60092

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-60092/
Summaries are generated and may contain mistakes; the official description above is the record.