# CVE-2026-57783: merkulove Speaker stored XSS in WordPress plugin

Source: https://junglewise.ai/threats/cve-2026-57783-merkulove-speaker-stored-xss-in-wordpress-plugin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-13. Updated: 2026-07-13  
License: CC BY 4.0 with a link back

CVE-2026-57783 · Severity: medium · CVSS 6.5 · Published 2026-07-13

The Speaker plugin for WordPress, which provides text-to-speech functionality, contains a security flaw that allows users with low-level permissions to inject malicious scripts into the website. If an administrator or visitor views the affected content, these scripts could execute, potentially leading to unauthorized actions, website redirects, or the theft of sensitive session information. As of the latest report, no official patch has been released to address this issue.

Vendors: [Merkulove](https://junglewise.ai/threats/vendors/merkulove).

## Quick answers

**Is CVE-2026-57783 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57783 being exploited in the wild.

**How severe is CVE-2026-57783?** Medium severity, with a CVSS score of 6.5, published 13 July 2026.

**Which products and versions are affected?** Merkulove Speaker <= 4.1.13.

**Is there a fix for CVE-2026-57783?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-57783 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-57783?** Check whether you run Merkulove Speaker at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stored cross-site scripting (XSS) vulnerability exists in the merkulove Speaker plugin for WordPress through version 4.1.13. The flaw stems from improper neutralization of user-supplied input during web page generation, allowing an attacker with 'Contributor' level privileges or higher to inject malicious scripts into the database. These scripts are subsequently executed in the browser of any user (including administrators) who views the compromised content. The attack requires minimal user interaction (viewing the page) and has a CVSS base score of 6.5. No official patch is currently available.

## Affected products

- merkulove Speaker <= 4.1.13

## Timeline

- 2026-02-06: disclosed: Reported by w41bu1
- 2026-07-02: advisory: Initial advisory published by Patchstack
- 2026-07-13: advisory: CVE published to NVD dataset

## References

- [https://codecanyon.net/](https://codecanyon.net/)
- [https://patchstack.com/database/Wordpress/Plugin/speaker/vulnerability/wordpress-speaker-plugin-4-1-13-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/Wordpress/Plugin/speaker/vulnerability/wordpress-speaker-plugin-4-1-13-cross-site-scripting-xss-vulnerability?_s_id=cve)