CVE-2018-12587 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via the URL address bar in the German Spelling Dictionary add-on for Opera.
- 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-2018-12587?
CVE-2018-12587 is a medium-severity cross-site scripting vulnerability in n/a, published on 13 Aug 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
A cross-site scripting (XSS) vulnerability was found in valeuraddons German Spelling Dictionary v1.3 (an Opera Browser add-on). Instead of providing text for a spelling check, remote attackers may inject arbitrary web script or HTML via the ajax query parameter in the URL Address Bar.
Weakness: CWE-79
Which versions are affected by CVE-2018-12587?
It affects 1 product.
Products include German Spelling Dictionary Project German Spelling Dictionary.
How do I fix CVE-2018-12587?
No fix has been published for CVE-2018-12587 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-2018-12587 being exploited?
There is no known exploitation of CVE-2018-12587 in the wild and no public exploit code.
Sources
Also known as GHSA-c22x-m825-4cw6.