CVE-2017-16956 Cross-site scripting in n/a
Attackers can execute arbitrary scripts in victims' browsers via crafted private letters in the Symphony blog platform.
- 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-2017-16956?
CVE-2017-16956 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Nov 2017. 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
b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a certain /article URI, and a second private letter with a modified title.
Weakness: CWE-79
Which versions are affected by CVE-2017-16956?
It affects 1 product.
Products include Symphony Project Symphony.
How do I fix CVE-2017-16956?
No fix has been published for CVE-2017-16956 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-2017-16956 being exploited?
There is no known exploitation of CVE-2017-16956 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-x6vj-q2p5-mvjj.