CVE-2011-3356 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via PATH_INFO in MantisBT, potentially stealing user data or hijacking accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2011-3356?
CVE-2011-3356 is a medium-severity cross-site scripting vulnerability in Mantisbt Mantisbt, published on 21 Sep 2011. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Multiple cross-site scripting (XSS) vulnerabilities in config_defaults_inc.php in MantisBT before 1.2.8 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO, as demonstrated by the PATH_INFO to (1) manage_config_email_page.php, (2) manage_config_workflow_page.php, or (3) bugs/plugin.php.
Weakness: CWE-79
Which versions are affected by CVE-2011-3356?
It affects 1 product.
Products include Mantisbt Mantisbt.
How do I fix CVE-2011-3356?
No fix has been published for CVE-2011-3356 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2011-3356 being exploited?
There is no known exploitation of CVE-2011-3356 in the wild and no public exploit code.
Other vulnerabilities in Mantisbt Mantisbt
- CVE-2019-15074 MantisBT allows cross-site scripting (XSS) via crafted filename
- CVE-2026-30849 MantisBT SOAP API has an authentication bypass vulnerability on MySQL
- CVE-2025-47776 MantisBT: Authentication bypass for some passwords due to PHP type juggling
- CVE-2017-7615 MantisBT allows arbitrary password reset
- CVE-2026-33517 MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation
Sources
Also known as GHSA-97r3-f3fh-2pjg.