CVE-2021-34640 Securimage-WP-Fixed <= 3.5.4 Reflected Cross-Site Scripting
Attackers can inject arbitrary web scripts via reflected XSS in the Securimage-WP-Fixed WordPress plugin, potentially compromising user sessions.
- 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-2021-34640?
CVE-2021-34640 is a medium-severity cross-site scripting vulnerability in Securimage-WP-Fixed, published on 11 Aug 2021. 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
The Securimage-WP-Fixed WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER['PHP_SELF'] in the ~/securimage-wp.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.5.4.
Weakness: CWE-79
Which versions are affected by CVE-2021-34640?
It affects 1 product.
Products include Securimage-Wp-Fixed Project Securimage-Wp-Fixed.
How do I fix CVE-2021-34640?
No fix has been published for CVE-2021-34640 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-2021-34640 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-34640 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Securimage-WP-Fixed
Sources
Also known as GHSA-ww58-2pvw-x3p4.