Platform
python
Component
siyuan
Fixed in
3.0.4
CVE-2024-2692 is a critical Server Side XSS (SSXSS) vulnerability discovered in SiYuan Knowledge Management, version 3.0.3. This flaw allows attackers to execute arbitrary commands on the server, potentially leading to complete system compromise. The vulnerability affects versions 3.0.3–3.0.3 and has been resolved in version 3.0.4. A patch is now available to mitigate this risk.
The impact of CVE-2024-2692 is severe. Successful exploitation allows an attacker to inject malicious scripts that are executed on the server-side. This can lead to unauthorized access to sensitive data, modification of system configurations, and even complete control over the SiYuan server. The ability to execute arbitrary commands significantly expands the attack surface, enabling attackers to move laterally within the network if the server has access to other resources. The SSXSS nature of the vulnerability means that the attack doesn't rely on client-side execution, making it harder to detect and defend against using traditional XSS mitigation techniques. This vulnerability shares characteristics with other SSXSS exploits where user input is improperly sanitized, leading to server-side code execution.
CVE-2024-2692 was publicly disclosed on April 4, 2024. The vulnerability's severity is high due to the potential for arbitrary command execution. Public proof-of-concept (PoC) code is likely to emerge, increasing the risk of exploitation. The vulnerability is not currently listed on the CISA KEV catalog, but its critical severity warrants close monitoring. Active exploitation campaigns are not yet confirmed, but the ease of exploitation could lead to widespread attacks.
Exploit Status
EPSS
0.30% (53% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2024-2692 is to immediately upgrade SiYuan Knowledge Management to version 3.0.4 or later. If upgrading is not immediately feasible, consider implementing temporary workarounds. While a direct WAF rule is difficult to implement for SSXSS, strict input validation and output encoding on all user-supplied data within SiYuan can help reduce the attack surface. Review and audit all custom plugins or extensions for potential vulnerabilities. Monitor server logs for unusual activity or suspicious command executions. After upgrading, confirm the fix by attempting to trigger the vulnerability with known attack vectors and verifying that the commands are not executed.
Update SiYuan to a version later than 3.0.3 that fixes the Server Side XSS vulnerability. Refer to the release notes or vendor website for more information about the update and included fixes.
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CVE-2024-2692 is a critical Server Side XSS vulnerability in SiYuan Knowledge Management versions 3.0.3–3.0.3, allowing arbitrary command execution on the server.
If you are using SiYuan Knowledge Management version 3.0.3, you are affected by this vulnerability and should upgrade immediately.
Upgrade SiYuan Knowledge Management to version 3.0.4 or later to resolve this vulnerability. Implement input validation as a temporary workaround if upgrading is not immediately possible.
Active exploitation campaigns are not yet confirmed, but the ease of exploitation could lead to widespread attacks.
Refer to the official SiYuan Knowledge Management advisory for detailed information and updates: [https://github.com/siuyuan/siuyuan/security/advisories/GHSA-5x4r-4j4g-993r](https://github.com/siuyuan/siuyuan/security/advisories/GHSA-5x4r-4j4g-993r)
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