# CVE-2026-1953: Stored Cross Site Scripting(XSS) in Nukegraphic CMS V3.1.2

> An authenticated attacker can inject malicious JavaScript via the user profile name field, leading to session hijacking and credential theft for other users.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/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:** 5 Feb 2026
- **Updated:** 5 Feb 2026
- **Also known as:** GHSA-8j3r-m764-cx9w

## What is CVE-2026-1953?

CVE-2026-1953 is a high-severity cross-site scripting vulnerability in Nukegraphic CMS, published on 5 Feb 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

Nukegraphic CMS v3.1.2 contains a stored cross-site scripting (XSS) vulnerability in the user profile edit functionality at /ngc-cms/user-edit-profile.php. The application fails to properly sanitize user input in the name field before storing it in the database and rendering it across multiple CMS pages. An authenticated attacker with low privileges can inject malicious JavaScript payloads through the profile edit request, which are then executed site-wide whenever the affected user's name is displayed. This allows the attacker to execute arbitrary JavaScript in the context of other users' sessions, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of victims.

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

## Which versions are affected by CVE-2026-1953?


## How do I fix CVE-2026-1953?

No fix has been published for CVE-2026-1953 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-1953 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1953 exists.

Public exploit code:

- Stored cross-site scripting (XSS) vulnerability in the edit profile feature at Nukegraphic CMS V3.1.2 (github_poc): https://github.com/dewaguard-red-team/CVE-2026-1953

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-1953 and fix it if it is affected.

What it is: CVE-2026-1953 is a high-severity cross-site scripting vulnerability in Nukegraphic CMS, published on 5 Feb 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-2026-1953 exists.

Affected product: Nukegraphic CMS. 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-2026-1953/ (Markdown: https://insights.sbomify.com/CVE-2026-1953/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1953
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1953
- OSV: https://osv.dev/vulnerability/CVE-2026-1953

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-1953/
Summaries are generated and may contain mistakes; the official description above is the record.