CVE-2024-33905

MEDIUM

Published Apr 29, 2024 Modified Apr 15, 2026 CWE-79

Description

In Telegram WebK before 2.0.0 (488), a crafted Mini Web App allows XSS via the postMessage web_app_open_link event type.

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CVSS v3.1 Score

4.6

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

http://www.openwall.com/lists/oss-security/2024/04/30/4 https://github.com/morethanwords/tweb/commit/2153ea9878668769faac8dd5931b7e0b96a9f129/src/components/popups/webApp.ts https://medium.com/%40pedbap/telegram-web-app-xss-session-hijacking-1-click-95acccdc8d90 https://www.openwall.com/lists/oss-security/2024/04/28/4 http://www.openwall.com/lists/oss-security/2024/04/30/4 https://github.com/morethanwords/tweb/commit/2153ea9878668769faac8dd5931b7e0b96a9f129/src/components/popups/webApp.ts https://medium.com/%40pedbap/telegram-web-app-xss-session-hijacking-1-click-95acccdc8d90 https://www.openwall.com/lists/oss-security/2024/04/28/4

Frequently Asked Questions

What is CVE-2024-33905? +

In Telegram WebK before 2.0.0 (488), a crafted Mini Web App allows XSS via the postMessage web_app_open_link event type. It has a CVSS v3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2024-33905? +

CVE-2024-33905 has a CVSS v3.1 score of 4.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2024-33905? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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