A stored Cross-Site Scripting vulnerability in the GitLab Flavored Markdown in GitLab CE/EE version 8.4 and above allowed an attacker to execute arbitrary JavaScript code on the victim's behalf.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 14.0. It was possible to exploit a stored cross-site-scripting via a specifically crafted default branch name.

An issue has been discovered in GitLab affecting all versions starting with 13.3. GitLab was vulnerable to a stored XSS by using the design feature in issues.

An issue has been discovered in GitLab affecting all versions starting with 11.8. GitLab was vulnerable to a stored XSS in the epics page, which could be exploited with user interactions.

Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.4. It was possible to exploit a stored cross-site-scripting in merge request via a specifically crafted branch name.

An issue has been discovered in GitLab affecting all versions starting with 13.10. GitLab was vulnerable to a stored XSS in blob viewer of notebooks.

Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 14.6.1 would fail to protect against attacks sending requests to localhost on port 80 or 443 if GitLab was configured to run on a port other than 80 or 443

Lack of email address ownership verification in the CODEOWNERS feature in all versions of GitLab EE starting from 11.3 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows an attacker to bypass CODEOWNERS Merge Request approval requirement under rare circumstances

HTML injection was possible via the full name field before versions 13.11.6, 13.12.6, and 14.0.2 in GitLab CE

Incorrect authorization checks in GitLab CE/EE from all versions starting from 8.13 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2, allows a user to abuse slack/mattermost integrations to execute slash commands as another user.

An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9, 11.9.x before 11.9.10, and 11.10.x before 11.10.2. It has a Race Condition which could allow users to approve a merge request multiple times and potentially reach the approval count required to merge.

An issue has been discovered in GitLab CE/EE affecting all versions before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Under certain conditions, GitLab REST API may allow unprivileged users to add other users to groups even if that is not possible to do through the Web UI.

An issue has been discovered in GitLab EE affecting all versions starting from 12.2 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1. In GitLab, if a group enables the setting to restrict access to users belonging to specific domains, that allow-list may be bypassed if a Maintainer uses the 'Invite a group' feature to invite a group that has members that don't comply with domain allow-list.

A business logic error in Project Import in GitLab CE/EE versions 14.9 prior to 14.9.2, 14.8 prior to 14.8.5, and 14.0 prior to 14.7.7 under certain conditions caused imported projects to show an incorrect user in the 'Access Granted' column in the project membership pages

A vulnerability was discovered in GitLab versions prior to 13.1. Under certain conditions the restriction for Github project import could be bypassed.

In all versions of GitLab CE/EE since version 7.7, the application may let a malicious user create an OAuth client application with arbitrary scope names which may allow the malicious user to trick unsuspecting users to authorize the malicious client application using the spoofed scope name and description.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.11 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. Under specific condition an unauthorised project member was allowed to delete a protected branches due to a business logic error.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.7. GitLab Dependency Proxy, under certain circumstances, can impersonate a user resulting in possibly incorrect access handling.

GitLab before 8.14.9, 8.15.x before 8.15.6, and 8.16.x before 8.16.5 has XSS via a SCRIPT element in an issue attachment or avatar that is an SVG document.

A Stored Cross-Site Scripting vulnerability allowed the execution of arbitrary Javascript code in the blobs API in all previous GitLab CE/EE versions through 13.0.1

GitLab through 12.7.2 allows XSS.

A cross-site scripting issue has been discovered in GitLab affecting all versions starting from 5.1 prior 17.0.6, starting from 17.1 prior to 17.1.4, and starting from 17.2 prior to 17.2.2. When viewing an XML file in a repository in raw mode, it can be made to render as HTML if viewed under specific circumstances.

A cross-site scripting issue has been discovered in GitLab affecting all versions starting from 5.1 before 16.10.7, all versions starting from 16.11 before 16.111.4, all versions starting from 17.0 before 17.0.2. When viewing an XML file in a repository in raw mode, it can be made to render as HTML if viewed under specific circumstances.

An issue was discovered in GitLab CE/EE affecting all versions starting from 16.9 prior to 16.11.5, starting from 17.0 prior to 17.0.3, and starting from 17.1 prior to 17.1.1, where a stored XSS vulnerability could be imported from a project with malicious commit notes.

A XSS condition exists within GitLab in versions 15.11 before 16.10.6, 16.11 before 16.11.3, and 17.0 before 17.0.1. By leveraging this condition, an attacker can craft a malicious page to exfiltrate sensitive user information.

An issue was discovered in GitLab Community and Enterprise Edition 10.5 through 12.4 in link validation for RDoc wiki pages feature. It has XSS.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.9 before 16.9.1. A crafted payload added to the user profile page could lead to a stored XSS on the client side, allowing attackers to perform arbitrary actions on behalf of victims."

GitLab EE 11.0 and later through 12.7.2 allows XSS.

Improper neutralization of input in Jira integration configuration in GitLab CE/EE, affecting all versions from 15.10 prior to 16.6.1, 16.5 prior to 16.5.3, and 16.4 prior to 16.4.3 allows attacker to execute javascript in victim's browser.

An issue has been discovered in GitLab CE/EE affecting all versions after 13.7 before 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1. Improper input sanitization of user name allows arbitrary API PUT requests.

A XSS exists in Gitlab CE/EE < 12.1.10 in the Mermaid plugin.

An issue was discovered in GitLab Community and Enterprise Edition 8.1 through 12.2.1. Certain areas displaying Markdown were not properly sanitizing some XSS payloads.

An issue has been discovered in GitLab affecting all versions starting from 10.0 before 12.9.8, all versions starting from 12.10 before 12.10.7, all versions starting from 13.0 before 13.0.1. TODO

An issue was discovered in GitLab Enterprise Edition 11.7 through 11.11. The epic details page contained a lack of input validation and output encoding issue which resulted in a persistent XSS vulnerability on child epics.

An issue was discovered in GitLab Community and Enterprise Edition 8.9 through 11.11. Wiki Pages contained a lack of input validation which resulted in a persistent XSS vulnerability.

Gitlab Community Edition version 9.1 is vulnerable to lack of input validation in the IPython notebooks component resulting in persistent cross site scripting.

An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9, 11.9.x before 11.9.10, and 11.10.x before 11.10.2. It has Improper Encoding or Escaping of Output. The branch name on new merge request notification emails isn't escaped, which could potentially lead to XSS issues.

An issue was discovered in GitLab Community and Enterprise Edition 11.10 through 12.2.1. Label descriptions are vulnerable to HTML injection.

GitLab 12.1 through 12.8.1 allows XSS. A stored cross-site scripting vulnerability was discovered when displaying merge requests.

A cross site scripting vulnerability exists in GitLab CE/EE affecting all versions from 16.6 prior to 17.0.5, 17.1 prior to 17.1.3, 17.2 prior to 17.2.1 allowing an attacker to execute arbitrary scripts under the context of the current logged in user.

Gitlab Community Edition version 10.2.4 is vulnerable to lack of input validation in the labels component resulting in persistent cross site scripting.

Gitlab Community Edition version 10.2.4 is vulnerable to lack of input validation in the CI job component resulting in persistent cross site scripting.

An issue has been discovered in GitLab CE/EE affecting all versions from 14.2 before 18.0.6, 18.1 before 18.1.4 and 18.2 before 18.2.2 that, under certain conditions, could have allowed a successful attacker to execute actions on behalf of users by injecting malicious content.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.11 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2 that, under certain conditions, could have allowed a successful attacker to execute actions on behalf of users by injecting malicious content.

An issue has been discovered in GitLab CE/EE affecting all versions from 18.2 before 18.2.2 that, under certain conditions, could have allowed authenticated users to achieve stored cross-site scripting by injecting malicious HTML content in scoped label descriptions.

GitLab Community and Enterprise Editions version 8.4 up to 10.4 are vulnerable to XSS because a lack of input validation in the merge request component leads to cross site scripting (specifically, filenames in changes tabs of merge requests). This is fixed in 10.6.3, 10.5.7, and 10.4.7.

GitLab Community and Enterprise Editions version 9.2 up to 10.4 are vulnerable to XSS because a lack of input validation in the milestones component leads to cross site scripting (specifically, data-milestone-id in the milestone dropdown feature). This is fixed in 10.6.3, 10.5.7, and 10.4.7.

An issue has been discovered in GitLab CE/EE affecting all versions from 18.1 before 18.1.4, and 18.2 before 18.2.2 that could have allowed authenticated users to achieve account takeover by injecting malicious HTML into work item names.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.6 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. GitLab was vulnerable to HTML Injection through the Swagger UI feature.