# CVE-2026-2679: Multiple vulnerabilities in A3factura software

> Reflected XSS in A3factura allows attackers to execute arbitrary code in victims' browsers via the customerName parameter.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/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:** 26 Feb 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-jm25-jfc5-xhx6

## What is CVE-2026-2679?

CVE-2026-2679 is a medium-severity cross-site scripting vulnerability in A3factura, published on 26 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

Reflected Cross-Site Scripting (XSS) on the A3factura web platform, in parameter 'customerName', in 'a3factura-app.wolterskluwer.es/#/incomes/salesInvoices' endpoint, which could allow an attacker to execute arbitrary code in the victim's browser.

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

## Which versions are affected by CVE-2026-2679?

It affects 1 product.


Products: Wolterskluwer A3factura.

## How do I fix CVE-2026-2679?

No fix has been published for CVE-2026-2679 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2679 being exploited?

There is no known exploitation of CVE-2026-2679 in the wild and no public exploit code.

## Other vulnerabilities in A3factura

- [CVE-2026-2677](https://insights.sbomify.com/CVE-2026-2677/): Multiple vulnerabilities in A3factura software (medium 4.8)
- [CVE-2026-2678](https://insights.sbomify.com/CVE-2026-2678/): Multiple vulnerabilities in A3factura software (medium 4.8)
- [CVE-2026-2680](https://insights.sbomify.com/CVE-2026-2680/): Multiple vulnerabilities in A3factura software (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2679 and fix it if it is affected.

What it is: CVE-2026-2679 is a medium-severity cross-site scripting vulnerability in A3factura, published on 26 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: There is no known exploitation of CVE-2026-2679 in the wild and no public exploit code.

Affected product: A3factura. 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-2026-2679/ (Markdown: https://insights.sbomify.com/CVE-2026-2679/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2679
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2679
- OSV: https://osv.dev/vulnerability/CVE-2026-2679

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2679/
Summaries are generated and may contain mistakes; the official description above is the record.