CVE-2020-28249
Cross-site scripting in Joplin
Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note.
- Record
CVE-2020-28249- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note.
- Record
CVE-2020-28249- Updated
- 2026-11-02
EUVDEUVD-2021-1156 No score
Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note.
- Record
EUVD-2021-1156- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q26w-wjj2-22vv
Cross-site scripting in Joplin
Joplin allows XSS via a LINK element in a note.
- Record
GHSA-q26w-wjj2-22vv- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note.
- Record
CVE-2020-28249- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-q26w-wjj2-22vv
Cross-site scripting in Joplin
Joplin allows XSS via a LINK element in a note.
- Record
GHSA-q26w-wjj2-22vv- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joplinnpm |
before 1.3.11 | 1.3.11 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Joplin 1.2.6 - 'link' Cross Site Scripting | 2020-11-09 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28249 is a medium vulnerability (CVSS 6.1) in Joplin Project Joplin, published November 6, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.06%, the 87th percentile. Fixed in joplin 1.3.11.