GHSA-63cr-xg3f-8jvr
Leantime allows Stored Cross-Site Scripting (XSS)
Summary
Stored XSS, also known as persistent XSS, is the more damaging of the two. It occurs when a malicious script is injected directly into a vulnerable web application.
Details
A Stored Cross-Site Scripting (XSS) vulnerability was found that could potentially compromise user data and pose a significant security risk to the platform.
PoC
- Create a project
- Navigate to project
- Visit to the integration
- Add malicious payload inside the webhook and save it.
- Notice the alert dialogue indicating successful execution of the XSS payload.
'';!--" onfocus=alert(0) autofocus="" onload=alert(3);="&{(alert(1))}" |="" mufazmi"="
'';!--" onfocus=alert(0) autofocus="" onload=alert(3);=>>"&{(alert(1))}" |="">> mufazmi"=">>
POC
Impact
This XSS vulnerability allows an attacker to execute malicious scripts in the context of a victim's browser when they click on a specially crafted link. This could lead to various malicious activities, including session hijacking, stealing sensitive information such as cookies or login credentials, and potentially compromising the entire platform's security.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
What each source reports
GitHub Advisories Score used
Leantime allows Stored Cross-Site Scripting (XSS)
Summary
Stored XSS, also known as persistent XSS, is the more damaging of the two. It occurs when a malicious script is injected directly into a vulnerable web application.
Details
A Stored Cross-Site Scripting (XSS) vulnerability was found that could potentially compromise user data and pose a significant security risk to the platform.
PoC
- Create a project
- Navigate to project
- Visit to the integration
- Add malicious payload inside the webhook and save it.
- Notice the alert dialogue indicating successful execution of the XSS payload.
'';!--" onfocus=alert(0) autofocus="" onload=alert(3);="&{(alert(1))}" |="" mufazmi"="
'';!--" onfocus=alert(0) autofocus="" onload=alert(3);=>>"&{(alert(1))}" |="">> mufazmi"=">>
POC
Impact
This XSS vulnerability allows an attacker to execute malicious scripts in the context of a victim's browser when they click on a specially crafted link. This could lead to various malicious activities, including session hijacking, stealing sensitive information such as cookies or login credentials, and potentially compromising the entire platform's security.
- Record
GHSA-63cr-xg3f-8jvr- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Leantime allows Stored Cross-Site Scripting (XSS)
Summary
Stored XSS, also known as persistent XSS, is the more damaging of the two. It occurs when a malicious script is injected directly into a vulnerable web application.
Details
A Stored Cross-Site Scripting (XSS) vulnerability was found that could potentially compromise user data and pose a significant security risk to the platform.
PoC
- Create a project
- Navigate to project
- Visit to the integration
- Add malicious payload inside the webhook and save it.
- Notice the alert dialogue indicating successful execution of the XSS payload.
'';!--" onfocus=alert(0) autofocus="" onload=alert(3);="&{(alert(1))}" |="" mufazmi"="
'';!--" onfocus=alert(0) autofocus="" onload=alert(3);=>>"&{(alert(1))}" |="">> mufazmi"=">>
POC
Impact
This XSS vulnerability allows an attacker to execute malicious scripts in the context of a victim's browser when they click on a specially crafted link. This could lead to various malicious activities, including session hijacking, stealing sensitive information such as cookies or login credentials, and potentially compromising the entire platform's security.
- Record
GHSA-63cr-xg3f-8jvr- CVSS 4.0
- 5.9 Medium
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
leantime/leantimePackagist | through 3.1.4 | None known |
leantime/leantimePackagist | through 3.1.4, plus listed versions 2.42.4-beta2.4-beta-72.4-beta-82.4.1 Show 45 moreShow less2.4.22.4.32.4.42.4.52.4.72.4.83.0.03.0.0-beta3.0.13.0.23.0.33.0.43.0.53.0.63.0.73.1.0-beta3.1.13.1.23.1.3v2.0v2.0.1v2.0.10v2.0.11v2.0.12v2.0.13v2.0.14v2.0.15v2.0.2v2.0.3v2.0.4v2.0.5v2.0.6v2.0.7v2.0.8v2.0.9v2.1v2.1-betav2.1-beta2v2.1-beta3v2.1-beta5v2.1-beta6v2.1.1v2.1.2v2.1.3v2.1.4 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-63cr-xg3f-8jvr is a medium vulnerability (CVSS 5.9) in leantime/leantime, published February 21, 2025. No source lists public exploit code. No source names a fixed version.
References
Left out here: 45 versions. The JSON record has them.