# CVE-2026-49777: WordPress Product Slider Pro for WooCommerce plugin < 3.5.4 - Backdoor vulnerability

> Attackers can implant malicious software in Product Slider Pro for WooCommerce due to improper input validation, requiring immediate upgrade.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Jun 2026
- **Updated:** 8 Jun 2026
- **Also known as:** GHSA-r843-rvx7-3rjg

## What is CVE-2026-49777?

CVE-2026-49777 is a critical code injection vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows Malicious Software Implanted.

This issue affects Product Slider Pro for WooCommerce: from n/a before 3.5.4.

Weakness: CWE-1284 (Improper Validation of Specified Quantity in Input)

## Which versions are affected by CVE-2026-49777?


## How do I fix CVE-2026-49777?

No fix has been published for CVE-2026-49777 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-49777 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49777 exists.

Public exploit code:

- CVE-2026-49777, CVE-2026-10735 (github_poc): https://github.com/HORKimhab/CVE-Wordpress
- CVE-2026-49777 - ShapedPlugin Product Slider Pro for WooCommerce Backdoor RCE (github_poc): https://github.com/izxci/CVE-2026-49777
- https://github.com/xxconi/CVE-2026-49777-CVE-2026-10735 (github_poc): https://github.com/xxconi/CVE-2026-49777-CVE-2026-10735
- https://github.com/katranSefa/CVE-2026-49777 (github_poc): https://github.com/katranSefa/CVE-2026-49777
- WordPress Product Slider Pro for WooCommerce < 3.5.4 - Supply Chain Backdoor RCE (nuclei): http/cves/2026/CVE-2026-49777.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-49777 and fix it if it is affected.

What it is: CVE-2026-49777 is a critical code injection vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49777 exists.

Affected product: ShapedPlugin, LLC Product Slider Pro for WooCommerce. 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-2026-49777/ (Markdown: https://insights.sbomify.com/CVE-2026-49777/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-49777
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49777
- OSV: https://osv.dev/vulnerability/CVE-2026-49777

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-49777/
Summaries are generated and may contain mistakes; the official description above is the record.