XSS in Linux Kernel
CVE-2023-2317
DOM-based XSS in updater/update.html in Typora before 1.6.7 on Windows and Linux allows a crafted markdown file to run arbitrary JavaScript code in the context of Typora main window via loading typora://app/typemark/updater/update.html in <embed> tag. This vulnerability can be exploited if a user opens a malicious markdown file in Typora, or copies text from a malicious webpage and paste it into Typora.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Linux Kernel
- Microsoft Windows
- Typora — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.typora.io/What's-New-1.6/ (release-notes, Vendor Advisory)
- starlabs.sg/advisories/23/23-2317/ (Exploit, Third Party Advisory, Mitigation, third-party-advisory)
Frequently asked questions
- What is CVE-2023-2317?
- CVE-2023-2317 is a high-severity vulnerability in Linux Kernel, classified under Cross-site Scripting. CVSS score: 8.6/10. Published 2023-08-19.
- How severe is CVE-2023-2317?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2023-2317 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.