Newsletter Plugin up to 8.8.4 on WordPress Widget Option cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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2.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Newsletter Plugin up to 8.8.4 on WordPress. Affected by this issue is some unknown functionality of the component Widget Option Handler. The manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2025-3581. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Newsletter Plugin up to 8.8.4 on WordPress. Affected is an unknown part of the component Widget Option Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The weakness was shared by Dmitrii Ignatyev. The advisory is shared for download at wpscan.com. This vulnerability is traded as CVE-2025-3581 since 04/14/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are needed for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 8.8.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-17435). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.3

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Newsletter Plugin 8.8.5

Timelineinfo

04/14/2025 🔍
06/09/2025 +56 days 🔍
06/09/2025 +0 days 🔍
06/09/2025 +0 days 🔍

Sourcesinfo

Advisory: wpscan.com
Researcher: Dmitrii Ignatyev
Status: Confirmed

CVE: CVE-2025-3581 (🔍)
GCVE (CVE): GCVE-0-2025-3581
GCVE (VulDB): GCVE-100-311664
EUVD: 🔍

Entryinfo

Created: 06/09/2025 08:44
Updated: 06/09/2025 10:02
Changes: 06/09/2025 08:44 (57), 06/09/2025 10:02 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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