CVE-2025-55474 json
Many Notes 0.10.1 is vulnerable to Cross Site Scripting (XSS), which allows malicious Markdown files to execute JavaScript when viewed.
published 2025-09-02 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-26415
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
Many Notes 0.10.1 is vulnerable to Cross Site Scripting (XSS), which allows malicious Markdown files to execute JavaScript when viewed.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 14 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- cyber-ducky.com https://cyber-ducky.com/stored-xss-found-in-many-notes-the-best-note-taking-app/ referenced PoC, tagged "exploit" by a source, unverified
- medium.com https://medium.com/@cyberducky/how-i-found-a-stored-xss-in-markdown-rendering-e73cfc3cd93a referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
cyber-ducky.com
/stored-xss-found-in-many-notes-the-best-note-taking-app/
exploit, third-party-advisory
-
medium.com
/@cyberducky/how-i-found-a-stored-xss-in-markdown-rendering-e73cfc3cd93a
exploit, third-party-advisory
-
github.com
/brufdev/many-notes/releases/tag/v0.10.2
release-notes
Sources
- CVE List CVE-2025-55474
- NVD CVE-2025-55474
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.