CVE-2025-30544

WordPress OK Poster Group plugin <= 1.1 - Reflected Cross Site Scripting (XSS) vulnerability

Published Apr 1, 2025 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in svmidi OK Poster Group ok-poster-group allows Reflected XSS.This issue affects OK Poster Group: from n/a through <= 1.1.

Analysis

Technical impact

The OK Poster Group plugin fails to properly neutralize user supplied data that is reflected back in the page. When a visitor follows a crafted URL, the injected script runs in the victim’s browser, enabling credential theft, session hijacking, or page defacement. This flaw is a classic example of CWE‑79 Cross‑Site Scripting.

Affected Systems

Any WordPress site that has the OK Poster Group plugin from svmidi installed in a version through 1.1 is affected. The issue exists in all prior releases and is resolved only in versions newer than 1.1.

Risk and Exploitability

With a CVSS score of 7.1 the vulnerability is considered high severity, but the EPSS score is below 1 %, implying a low probability of widespread exploitation at this time. The flaw is not listed in the CISA KEV catalog. Because the attack can be carried out remotely without authentication by delivering a malicious link, any user who visits an affected page is vulnerable.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

svmidi

OK Poster Group

unaffected

Version	Status	Constraints
`0`	affected	≤ 1.1

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Update the OK Poster Group plugin to the latest version (greater than 1.1) as the vendor has fixed the reflected XSS flaw.
If a patch cannot be applied immediately, uninstall or disable the plugin to eliminate the vulnerable code path.
Deploy or configure a web application firewall that blocks or sanitizes XSS payloads in incoming requests as an additional protective layer.

Generated by OpenCVE AI on May 1, 2026 at 02:45 UTC.

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2025-9110	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound OK Poster Group allows Reflected XSS. This issue affects OK Poster Group: from n/a through 1.1.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.317% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://patchstack.com/database/Wordpress/Plugin/ok-poster-group/vulnerability/wordpress-ok-poster-group-plugin-1-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

History

Apr 23, 2026 3:00 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Apr 1, 2026 11:45 PM Description updated. References updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound OK Poster Group allows Reflected XSS. This issue affects OK Poster Group: from n/a through 1.1.	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in svmidi OK Poster Group ok-poster-group allows Reflected XSS.This issue affects OK Poster Group: from n/a through <= 1.1.
References	https://patchstack.com/database/wordpress/plugin/ok-poster-group/vulnerability/wordpress-ok-poster-group-plugin-1-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve	https://patchstack.com/database/Wordpress/Plugin/ok-poster-group/vulnerability/wordpress-ok-poster-group-plugin-1-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics	cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Apr 1, 2025 2:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Apr 1, 2025 5:45 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound OK Poster Group allows Reflected XSS. This issue affects OK Poster Group: from n/a through 1.1.
Title		WordPress OK Poster Group plugin <= 1.1 - Reflected Cross Site Scripting (XSS) vulnerability
Weaknesses		CWE-79
References		https://patchstack.com/database/wordpress/plugin/ok-poster-group/vulnerability/wordpress-ok-poster-group-plugin-1-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`