GHSA-73vx-49mv-v8w5
MantisBT has Stored HTML Injection/XSS when displaying Tags in Timeline
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | mantisbt/mantisbt | >= 2.28.0, < 2.28.2 | 2.28.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
Improper escaping of tag names retrieved from History in Timeline (my_view_page.php) allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript, when displaying a tag that has been renamed or deleted.
### Impact
Cross-site scripting (XSS).
### Patches
f32787c14d4518476fe7f05f992dbfe6eaccd815
### Workarounds
* Edit offending History entries (using SQL)
* Wrap `$this->tag_name` in a string_html_specialchars() call in IssueTagTimelineEvent::html()
### Credits
MantisBT thanks Vishal Shukla for discovering and responsibly reporting the issue.
References
External links from the advisory. They lead to third-party sites.