CVE-2026-28116 PUBLISHED

WordPress Progress Planner plugin <= 1.9.0 - Cross Site Scripting (XSS) vulnerability

Assigner: Patchstack
Reserved: 25.02.2026 Published: 02.06.2026 Updated: 02.06.2026

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Emilia Projects Progress Planner allows Stored XSS.

This issue affects Progress Planner: from n/a through 1.9.0.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
CVSS Score: 5.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	High	Integrity Impact	Low
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Emilia Projects
Product	Progress Planner
Versions	Default: unaffected affected from n/a to 1.9.0 (incl.)

Solutions

Update the WordPress Progress Planner Plugin to the latest available version (at least 1.9.1).

Credits

hongdo | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/wordpress/plugin/progress-planner/vulnerability/wordpress-progress-planner-plugin-1-9-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Problem Types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE

Impacts

CAPEC-592 Stored XSS