# CVE-2026-63157: Omnispace Agora Project < 26.10.0 Stored XSS via Links Module

> Authenticated users can inject malicious scripts via the Links module, leading to session hijacking or client-side compromise for other users.

- **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:** 13 Oct 2026
- **Updated:** 27 Oct 2026
- **Also known as:** GHSA-ghgw-7245-fm88

## What is CVE-2026-63157?

CVE-2026-63157 is a medium-severity cross-site scripting vulnerability in Omnispace Agora Project, published on 13 Oct 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

Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious scripts by submitting an unsanitized link address (adress) field that is echoed into an onclick event-handler attribute without neutralizing quotes. Attackers can store a crafted payload through the Links module that executes in the browser of any user viewing the links list, enabling session hijacking or further client-side compromise.

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

## Which versions are affected by CVE-2026-63157?


## How do I fix CVE-2026-63157?

No fix has been published for CVE-2026-63157 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-63157 being exploited?

There is no known exploitation of CVE-2026-63157 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-63157 and fix it if it is affected.

What it is: CVE-2026-63157 is a medium-severity cross-site scripting vulnerability in Omnispace Agora Project, published on 13 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-63157 in the wild and no public exploit code.

Affected product: Omnispace Agora Project. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-63157/ (Markdown: https://insights.sbomify.com/CVE-2026-63157/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-63157
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-63157
- OSV: https://osv.dev/vulnerability/CVE-2026-63157

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-63157/
Summaries are generated and may contain mistakes; the official description above is the record.