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Spectra CVE-2024-4366

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2024-05-24 security@wordfence.com
6.4
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.15%.

Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAI

The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘block_id’ parameter in versions up to, and including, 2.13.0 due to insufficient. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘block_id’ parameter in versions up to, and including, 2.13.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Affected products include: Brainstormforce Spectra.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.4 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Patch released
Apr 08, 2026 - 18:22 nvd
Patch available
CVE Published
May 24, 2024 - 08:15 nvd
MEDIUM 6.4

DescriptionCVE.org

The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘block_id’ parameter in versions up to, and including, 2.13.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Threat Intelligence Overview

EPSS Score
0.2%
Top 64% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:brainstormforce:spectra:*:*:*:*:*:wordpress:*:*
CVE-2020-25966 HIGH POC
7.5 Oct 28

Sectona Spectra before 3.4.0 has a vulnerable SOAP API endpoint that leaks sensitive information about the configured as

CVE-2023-6486 MEDIUM POC
6.4 Apr 09

The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custo

CVE-2020-36702 MEDIUM POC
5.5 Jun 07

The Ultimate Addons for Gutenberg plugin for WordPress is vulnerable to Authenticated Settings Change in versions up to,

CVE-2024-37517 HIGH
8.8 Nov 01

Missing Authorization vulnerability in Brainstorm Force Spectra allows Exploiting Incorrectly Configured Access Control

CVE-2023-36679 HIGH
7.1 Mar 28

Server-Side Request Forgery (SSRF) vulnerability in Brainstorm Force Spectra.6.6. Rated high severity (CVSS 7.1), this v

CVE-2024-7590 MEDIUM
6.5 Aug 12

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brainstorm Force S

CVE-2023-49833 MEDIUM
6.5 Dec 14

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brainstorm Force S

CVE-2024-1815 MEDIUM
6.4 May 23

The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugi

CVE-2024-1814 MEDIUM
6.4 May 23

The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugi

CVE-2024-10484 MEDIUM
5.4 Dec 03

The Spectra - WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugi

CVE-2024-3827 MEDIUM
5.4 Aug 02

The Spectra Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via block ids in all versions up to, a

CVE-2023-23834 MEDIUM
4.3 Dec 09

Missing Authorization vulnerability in Brainstorm Force Spectra ultimate-addons-for-gutenberg allows Exploiting Incorrec

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