CVE-2021-3258 Cross-site scripting in n/a
Cross-site scripting in the Q2A Ultimate SEO plugin allows attackers to execute arbitrary remote code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-3258?
CVE-2021-3258 is a medium-severity cross-site scripting vulnerability in n/a, published on 5 Feb 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.
Weakness: CWE-79
Which versions are affected by CVE-2021-3258?
It affects 1 product.
Products include Qa-Themes Q2a Ultimate Seo.
How do I fix CVE-2021-3258?
No fix has been published for CVE-2021-3258 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-2021-3258 being exploited?
There is no known exploitation of CVE-2021-3258 in the wild and no public exploit code.
Sources
Also known as GHSA-rjqp-837c-gqg6.