# CVE-2026-67196: Perspective 5.0.0 XSS via Debug Plugin innerHTML Interpolation

> Attackers can execute arbitrary JavaScript in the embedding page's origin by injecting unescaped HTML into table cells rendered by the Debug plugin.

- **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:** 4 Aug 2026
- **Updated:** 5 Aug 2026
- **Also known as:** GHSA-4hrp-pjm9-fv3q

## What is CVE-2026-67196?

CVE-2026-67196 is a medium-severity cross-site scripting vulnerability in perspective-dev perspective, published on 4 Aug 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

Perspective 5.0.0 contains a cross-site scripting vulnerability in the built-in Debug plugin that allows attackers to inject arbitrary HTML and JavaScript by writing table cell values containing unescaped HTML markup, which are interpolated directly into innerHTML during CSV serialization rendering. Attackers can craft table rows with payloads such as unquoted attribute injections containing event handler attributes that bypass RFC 4180 quoting, since angle brackets and event handler attributes are never escaped before assignment, causing malicious scripts to execute in the embedding page's origin.

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

## Which versions are affected by CVE-2026-67196?


## How do I fix CVE-2026-67196?

No fix has been published for CVE-2026-67196 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-67196 being exploited?

There is no known exploitation of CVE-2026-67196 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-67196 and fix it if it is affected.

What it is: CVE-2026-67196 is a medium-severity cross-site scripting vulnerability in perspective-dev perspective, published on 4 Aug 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-2026-67196 in the wild and no public exploit code.

Affected product: perspective-dev perspective. 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-2026-67196/ (Markdown: https://insights.sbomify.com/CVE-2026-67196/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-67196
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-67196
- OSV: https://osv.dev/vulnerability/CVE-2026-67196

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-67196/
Summaries are generated and may contain mistakes; the official description above is the record.