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CVE-2025-24028

Cross-site Scripting (XSS) in Rich Text Editor allows arbitrary code execution in Joplin

7.8 HighFix available

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is cross-origin isolated, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin window. This issue is not present in Joplin 3.1.24 and may have been introduced in 9b50539. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.52%Up 0.5 points since Feb 8, 2025
90%50%10%1%

What each source reports

CVE List Score used 7.8

Cross-site Scripting (XSS) in Rich Text Editor allows arbitrary code execution in Joplin

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is cross-origin isolated, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin window. This issue is not present in Joplin 3.1.24 and may have been introduced in 9b50539. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Record
CVE-2025-24028
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2025-3599 7.8

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is cross-origin isolated, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin window. This issue is not present in Joplin 3.1.24 and may have been introduced in 9b50539. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Record
EUVD-2025-3599
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
NVD 7.8

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is cross-origin isolated, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin window. This issue is not present in Joplin 3.1.24 and may have been introduced in 9b50539. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Record
CVE-2025-24028
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02
OSVALPINE-CVE-2025-24028 9.6

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is cross-origin isolated, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin window. This issue is not present in Joplin 3.1.24 and may have been introduced in 9b50539. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Record
ALPINE-CVE-2025-24028
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-03
OSV 7.8

Cross-site Scripting (XSS) in Rich Text Editor allows arbitrary code execution in Joplin

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by differences between how Joplin's HTML sanitizer handles comments and how the browser handles comments. This affects both the Rich Text Editor and the Markdown viewer. However, unlike the Rich Text Editor, the Markdown viewer is cross-origin isolated, which prevents JavaScript from directly accessing functions/variables in the toplevel Joplin window. This issue is not present in Joplin 3.1.24 and may have been introduced in 9b50539. This is an XSS vulnerability that impacts users that open untrusted notes in the Rich Text Editor. This vulnerability has been addressed in version 3.2.12 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Record
CVE-2025-24028
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
qt6-qtwebengine
Alpine:v3.23
before 6.9.3-r2
6.9.3-r2
qt6-qtwebengine
Alpine:v3.24
before 6.9.3-r2
6.9.3-r2

History

History
RecordedChangedSources
affected, aliases, facts, referencesOSV
aliases, publishedEUVD
first indexedCVE List, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-24028 is a high vulnerability (CVSS 7.8) in Joplin Project Joplin, published February 7, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. Fixed in qt6-qtwebengine 6.9.3-r2.

References

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