CVE-2019-16520 Cross-site scripting in n/a
Stored XSS in All in One SEO Pack allows attackers to inject malicious scripts via post descriptions, potentially compromising user sessions.
- 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-2019-16520?
CVE-2019-16520 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Oct 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The all-in-one-seo-pack plugin before 3.2.7 for WordPress (aka All in One SEO Pack) is susceptible to Stored XSS due to improper encoding of the SEO-specific description for posts provided by the plugin via unsafe placeholder replacement.
Weakness: CWE-79
Which versions are affected by CVE-2019-16520?
It affects 1 product.
Products include Semperplugins All in One Seo Pack.
How do I fix CVE-2019-16520?
No fix has been published for CVE-2019-16520 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-2019-16520 being exploited?
There is no known exploitation of CVE-2019-16520 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-m78p-fvq8-rg9f.