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Jetpack CVE-2021-24374

MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2021-06-21 contact@wpscan.com
5.3
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Object-level authorization, IDOR prevention
Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 1.5% exploitation probability (EPSS)

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AnalysisAI

The Jetpack Carousel module of the JetPack WordPress plugin before 9.8 allows users to create a "carousel" type image gallery and allows users to comment on the images. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

composer automattic/jetpack fix: 9.8

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

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 under CWE-639. The Jetpack Carousel module of the JetPack WordPress plugin before 9.8 allows users to create a "carousel" type image gallery and allows users to comment on the images. A security vulnerability was found within the Jetpack Carousel module by nguyenhg_vcs that allowed the comments of non-published page/posts to be leaked. Affected products include: Automattic Jetpack. Version information: before 9.8.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionNVD

The Jetpack Carousel module of the JetPack WordPress plugin before 9.8 allows users to create a "carousel" type image gallery and allows users to comment on the images. A security vulnerability was found within the Jetpack Carousel module by nguyenhg_vcs that allowed the comments of non-published page/posts to be leaked.

Threat Intelligence Overview

EPSS Score
1.5%
Top 29% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 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 Yes
EPSS 1.5%
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
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:automattic:jetpack:*:*:*:*:*:wordpress:*:*
CVE-2023-2996 HIGH POC
8.8 Jun 27

The Jetpack WordPress plugin before 12.1.1 does not validate uploaded files, allowing users with author roles or above t

CVE-2023-45050 MEDIUM POC
6.5 Nov 30

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Automattic Jetpack

CVE-2023-54332 MEDIUM POC
6.1 Jan 13

Jetpack 11.4 contains a cross-site scripting vulnerability in the contact form module that allows attackers to inject ma

CVE-2024-10858 MEDIUM POC
6.1 Dec 25

The Jetpack WordPress plugin before 14.1 does not properly checks the postmessage origin in its 13.x versions, allowing

CVE-2024-10075 MEDIUM POC
5.6 May 15

The Jetpack WordPress plugin before 13.8 does not ensure that the post created by the Contact Form is only accessible to

CVE-2022-50958 MEDIUM POC
5.1 May 10

WordPress Plugin Jetpack 9.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attacke

CVE-2024-9926 MEDIUM POC
4.3 Nov 07

The Jetpack WordPress plugin does not have proper authorisation in one of its REST endpoint, allowing any authenticated

CVE-2024-4392 MEDIUM
6.4 May 14

The Jetpack - WP Security, Backup, Speed, & Growth plugin for WordPress is vulnerable to Stored Cross-Site Scripting via

CVE-2024-10076 MEDIUM
5.9 May 15

The Jetpack WordPress plugin before 13.8, Jetpack Boost WordPress plugin before 3.4.8 use regexes in the Site Accelerato

CVE-2014-0173 MEDIUM
5.8 Apr 22

The Jetpack plugin before 1.9 before 1.9.4, 2.0.x before 2.0.9, 2.1.x before 2.1.4, 2.2.x before 2.2.7, 2.3.x before 2.3

CVE-2023-47774 MEDIUM
5.4 Apr 24

Improper Restriction of Rendered UI Layers or Frames vulnerability in Automattic Jetpack allows Clickjacking.7. Rated me

CVE-2026-106601 MEDIUM
5.4 Oct 09

Authentication bypass in the Automattic Jetpack WordPress plugin, affecting all versions through 16.2, allows unauthenti

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