JVN#26044739
Typora fails to properly neutralize JavaScript code
Overview
Typora fails to properly neutralize JavaScript code.
Products Affected
- Typora versions prior to 1.4.4
Description
Typora fails to properly neutralize JavaScript code (CWE-116).
Impact
Opening a file with the affected product may lead to execute the JavaScript code inside the file.
Solution
Update the Software
Update the software to the latest version according to the information provided by the developer.
The developer confirms the vulnerability is fixed in Typora versions 1.4.x.
The reporter confirms that Typora version 1.4.4 is not affected.
Vendor Status
| Vendor | Link |
| Typora | History Releases |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Comment
This analysis assumes that a target user downloads a crafted file and opens it with the affected product.
Credit
Eiji Mori of Flatt Security Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2022-43668 |
| JVN iPedia |
JVNDB-2022-000092 |