CVE-2023-2436 Blog-in-Blog <= 2.0.0 - Authenticated (Editor+) Stored Cross-Site Scripting via Shortcode
Authenticated editors can inject arbitrary scripts via shortcode attributes, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-2436?
CVE-2023-2436 is a medium-severity cross-site scripting vulnerability in timhodson Blog-in-Blog, published on 31 May 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Blog-in-Blog plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'blog_in_blog' shortcode in versions up to, and including, 2.0.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with editor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2023-2436?
It affects 1 product.
Products include Blog-in-Blog Project Blog-in-Blog.
How do I fix CVE-2023-2436?
No fix has been published for CVE-2023-2436 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-2023-2436 being exploited?
There is no known exploitation of CVE-2023-2436 in the wild and no public exploit code.
Other vulnerabilities in timhodson Blog-in-Blog
Sources
Also known as GHSA-hcvp-89cc-4w77.