CVE-2018-5249 Cross-site scripting in n/a
Remote attackers can inject arbitrary code via the login form's username field in Shaarli, potentially compromising user sessions.
- 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
- None listed
What is CVE-2018-5249?
CVE-2018-5249 is a medium-severity cross-site scripting vulnerability in n/a, published on 5 Jan 2018. 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
Cross-site scripting (XSS) vulnerability in Shaarli before 0.8.5 and 0.9.x before 0.9.3 allows remote attackers to inject arbitrary code via the login form's username field (aka the login parameter to the ban_canLogin function in index.php).
Weakness: CWE-79
Which versions are affected by CVE-2018-5249?
It affects 1 product.
Products include Shaarli Project Shaarli.
How do I fix CVE-2018-5249?
No fix has been published for CVE-2018-5249 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-2018-5249 being exploited?
There is no known exploitation of CVE-2018-5249 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-43f8-j7wq-qhwm.