# CVE-2026-19810: Cross-Site Scripting (XSS) in Symantec Endpoint Detection and Response Console

> Attackers can inject malicious scripts into the Symantec EDR Console, potentially stealing user session data or bypassing security restrictions.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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:** 14 Oct 2026
- **Also known as:** GHSA-7vr8-cmj7-5jj4

## What is CVE-2026-19810?

CVE-2026-19810 is a medium-severity cross-site scripting vulnerability in Broadcom Symantec Endpoint Detection and Response, 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

Symantec Endpoint Detection and Response (SEDR) Console, prior to 4.13, may be susceptible to a Cross-Site Scripting (XSS) vulnerability, which is a type of issue whereby an attacker may attempt to inject malicious script that executes in the context of another user’s session, potentially resulting in unauthorized access to functionality or information normally restricted to that user.

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

## Which versions are affected by CVE-2026-19810?


## How do I fix CVE-2026-19810?

No fix has been published for CVE-2026-19810 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-19810 being exploited?

There is no known exploitation of CVE-2026-19810 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19810 and fix it if it is affected.

What it is: CVE-2026-19810 is a medium-severity cross-site scripting vulnerability in Broadcom Symantec Endpoint Detection and Response, 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-2026-19810 in the wild and no public exploit code.

Affected product: Broadcom Symantec Endpoint Detection and Response. 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-2026-19810/ (Markdown: https://insights.sbomify.com/CVE-2026-19810/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19810
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19810
- OSV: https://osv.dev/vulnerability/CVE-2026-19810

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-19810/
Summaries are generated and may contain mistakes; the official description above is the record.