Code execution via cross-domain iframe src parsing
Published Apr 16, 2024 · Updated Aug 2, 2024
Improper iframe handling in Typora before 1.8.10 allows local users to execute code and disclose data through a crafted Markdown file. The Markdown renderer parses an attacker-controlled iframe tag and loads the cross-domain src content as executable HTML. A local user must open or edit the crafted document and interact with the embedded content; the demonstrated behavior enables website spoofing, while the CVE record also reports code execution and sensitive-data disclosure.
Summary
What happened
Improper iframe handling in Typora before 1.8.10 allows local users to execute code and disclose data through a crafted Markdown file. The Markdown renderer parses an attacker-controlled iframe tag and loads the cross-domain src content as executable HTML. A local user must open or edit the crafted document and interact with the embedded content; the demonstrated behavior enables website spoofing, while the CVE record also reports code execution and sensitive-data disclosure.
The record
- CVE
- CVE-2024-31784
- Published
- Apr 16, 2024
- Updated
- Aug 2, 2024
- Vendor
- Qiyun (Shanghai) Technology Ltd.
- Product
- Typora
- Classifications
- CWE-290, T1204.002
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 16, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.8.10
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- TyporaIframeSpoofing Vulnerability proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo