CVE-2011-4340 Symphony CMS vulnerable to Cross-site Scripting
Authenticated users with Author privileges can inject arbitrary scripts via profile or filter parameters in Symphony CMS, potentially leading to session hijacking or data modification.
- 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
- Available
What is CVE-2011-4340?
CVE-2011-4340 is a low-severity cross-site scripting vulnerability in n/a, published on 12 Feb 2012. 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 Symphony CMS 2.2.3 and possibly other versions before 2.2.4 allow remote authenticated users with Author privileges to inject arbitrary web script or HTML via (1) the profile parameter to extensions/profiledevkit/content/content.profile.php, as demonstrated via requests to (a) the default URI, (b) about/, or (c) drafts/; or (2) the filter parameter in symphony/lib/core/class.symphony.php, as demonstrated via requests to (d) symphony/publish/comments or (e) symphony/publish/images. NOTE: some of these details are obtained from third party information.
Weakness: CWE-79
Which versions are affected by CVE-2011-4340?
2 open source packages ship an affected version, including symphonycms/symphony-2. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
symphonycms/symphony-2 Packagist | All versions | 2.2.4 |
symphonycms/symphony-2 Packagist | All versions | 2.2.4 |
Products include Symphony-Cms Symphony Cms.
How do I fix CVE-2011-4340?
Upgrade symphonycms/symphony-2 to 2.2.4 or later.
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-2011-4340 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4340 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wvq5-72qp-grjw.