CVE-2024-27477: leantime XSS — Exploit

Description

In Leantime 3.0.6, a Cross-Site Scripting vulnerability exists within the ticket creation and modification functionality, allowing attackers to inject malicious JavaScript code into the title field of tickets (also known as to-dos). This stored XSS vulnerability can be exploited to perform Server-Side Request Forgery (SSRF) attacks.

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CVSS v3.1 Score

6.1

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
leantime	leantime	All

References

Exploits

https://github.com/dead1nfluence/Leantime-POC/blob/main/README.md https://github.com/dead1nfluence/Leantime-POC/blob/main/README.md https://www.vicarius.io/vsociety/posts/analyzing-leantime-xss-for-the-fun-time-diving-into-cve-2024-27477-for-a-beginner

Other References

https://drive.proton.me/urls/35CKB8RV04#sEubCKVOuXqt https://github.com/Leantime/leantime/blob/264a7dbc2c9b18f574821bf27dd568a287ee8498/app/Domain/Tickets/Controllers/ShowTicket.php#L20 https://drive.proton.me/urls/35CKB8RV04#sEubCKVOuXqt https://github.com/Leantime/leantime/blob/264a7dbc2c9b18f574821bf27dd568a287ee8498/app/Domain/Tickets/Controllers/ShowTicket.php#L20

Frequently Asked Questions

What is CVE-2024-27477? +

In Leantime 3.0.6, a Cross-Site Scripting vulnerability exists within the ticket creation and modification functionality, allowing attackers to inject malicious JavaScript code into the title field of tickets (also known as to-dos). This stored XSS vulnerability can be exploited to perform Server-Side Request Forgery (SSRF) attacks. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2024-27477? +

CVE-2024-27477 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-27477? +

CVE-2024-27477 affects products from leantime, specifically: leantime. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27477? +

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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