CVE-2021-39267 Cross-site scripting in n/a
Remote attackers can execute arbitrary JavaScript in SuiteCRM via a file upload bypass, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-39267?
CVE-2021-39267 is a medium-severity cross-site scripting vulnerability in Salesagility Suitecrm, published on 18 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Persistent cross-site scripting (XSS) in the web interface of SuiteCRM before 7.11.19 allows a remote attacker to introduce arbitrary JavaScript via a Content-Type Filter bypass to upload malicious files. This occurs because text/html is blocked, but other types that allow JavaScript execution (such as text/xml) are not blocked.
Weakness: CWE-79
Which versions are affected by CVE-2021-39267?
1 open source package ship an affected version, including suitecrm. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
suitecrm Bitnami | All versions | 7.11.19 |
Products include Salesagility Suitecrm.
How do I fix CVE-2021-39267?
Upgrade suitecrm to 7.11.19 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-2021-39267 being exploited?
There is no known exploitation of CVE-2021-39267 in the wild and no public exploit code.
Other vulnerabilities in Salesagility Suitecrm
Sources
Also known as BIT-suitecrm-2021-39267, GHSA-jpv5-mgqh-93xq.