CVE-2022-4876 Kaltura mwEmbed DefaultSettings.php cross site scripting
Remote attackers can execute arbitrary scripts via the HTTP_X_FORWARDED_HOST header in Kaltura mwEmbed, requiring an upgrade to mitigate.
- 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-2022-4876?
CVE-2022-4876 is a low-severity cross-site scripting vulnerability in Kaltura mwEmbed, published on 4 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in Kaltura mwEmbed up to 2.96.rc1 and classified as problematic. This issue affects some unknown processing of the file includes/DefaultSettings.php. The manipulation of the argument HTTP_X_FORWARDED_HOST leads to cross site scripting. The attack may be initiated remotely. Upgrading to version 2.96.rc2 is able to address this issue. The patch is named 13b8812ebc8c9fa034eed91ab35ba8423a528c0b. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217427.
Weakness: CWE-79
Which versions are affected by CVE-2022-4876?
It affects 1 product.
Products include Kaltura Mwembed.
How do I fix CVE-2022-4876?
No fix has been published for CVE-2022-4876 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-2022-4876 being exploited?
There is no known exploitation of CVE-2022-4876 in the wild and no public exploit code.
Other vulnerabilities in Kaltura mwEmbed
Sources
Also known as GHSA-6m24-8j7f-j628.