CVE-2011-4540 Cross-site scripting in n/a

Medium 4.3 Published 1 Dec 2011 Updated 7 Aug 2024

Remote attackers can inject arbitrary web script or HTML via the func parameter in AtMail Open, potentially compromising user sessions.

Exploited in the wild: Not known
Login needed: Not stated
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2011-4540?

CVE-2011-4540 is a medium-severity cross-site scripting vulnerability in n/a, published on 1 Dec 2011. It can be exploited over the network, and only if a user opens a file or follows a link.

Official description

Multiple cross-site scripting (XSS) vulnerabilities in AtMail Open (aka AtMail Open-Source edition) 1.04 allow remote attackers to inject arbitrary web script or HTML via the func parameter to (1) ldap.php or (2) search.php.

Weakness: CWE-79

Which versions are affected by CVE-2011-4540?

It affects 1 product.

Products include Atmail Atmail Open.

How do I fix CVE-2011-4540?

No fix has been published for CVE-2011-4540 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-2011-4540 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4540 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-9jh6-4hcw-rr37.