CVE-2023-33961
Leantime Stored Cross-site Scripting Vulnerability
Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Leantime Stored Cross-site Scripting Vulnerability
Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.
- Record
CVE-2023-33961- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2023-38092
Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.
- Record
EUVD-2023-38092- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L - Updated
- 2026-11-03
NVD
Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.
- Record
CVE-2023-33961- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Leantime Stored Cross-site Scripting Vulnerability
Leantime is a lean open source project management system. Starting in version 2.3.21, an authenticated user with commenting privileges can inject malicious Javascript into a comment. Once the malicious comment is loaded in the browser by a user, the malicious Javascript code executes. As of time of publication, a patch does not exist.
- Record
CVE-2023-33961- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-33961 is a high vulnerability (CVSS 8.9) in Leantime, published May 30, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. No source names a fixed version.