# CVE-2026-19719: Social Media Share Buttons & Social Sharing Icons < 3.0.1 - Contributor+ Stored XSS via Post Title

> Contributors can inject malicious scripts via post titles in a WordPress plugin, leading to stored XSS when visitors interact with share buttons.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 2 Sep 2026
- **Updated:** 2 Sep 2026
- **Also known as:** GHSA-5959-3p9c-8939

## What is CVE-2026-19719?

CVE-2026-19719 is a medium-severity cross-site scripting vulnerability in Unknown Social Media Share Buttons & Social Sharing Icons, published on 2 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The Social Media Share Buttons & Social Sharing Icons WordPress plugin before 3.0.1 does not escape the post title before outputting it in an inline JavaScript event handler, allowing users with the Contributor role and above to perform Stored Cross-Site Scripting attacks which are triggered when a visitor interacts with the affected button.
Exploitation requires the Social Media Share Buttons & Social Sharing Icons WordPress plugin before 3.0.1 to be running a non-default icon display configuration.

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

## Which versions are affected by CVE-2026-19719?


## How do I fix CVE-2026-19719?

No fix has been published for CVE-2026-19719 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-19719 being exploited?

There is no known exploitation of CVE-2026-19719 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19719 and fix it if it is affected.

What it is: CVE-2026-19719 is a medium-severity cross-site scripting vulnerability in Unknown Social Media Share Buttons & Social Sharing Icons, published on 2 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-19719 in the wild and no public exploit code.

Affected product: Unknown Social Media Share Buttons & Social Sharing Icons. 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-2026-19719/ (Markdown: https://insights.sbomify.com/CVE-2026-19719/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19719
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19719
- OSV: https://osv.dev/vulnerability/CVE-2026-19719

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-19719/
Summaries are generated and may contain mistakes; the official description above is the record.