CVE-2026-52520 Cross-site scripting in n/a
Authenticated attackers can inject JavaScript into articles, leading to admin session hijacking and privilege escalation when viewed in the backend.
- 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-2026-52520?
CVE-2026-52520 is a medium-severity cross-site scripting vulnerability in n/a, published on 3 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Emlog CMS <= 2.6.14 contains a stored cross-site scripting (XSS) vulnerability in the article publishing module (/admin/article.php). A remote authenticated attacker can inject arbitrary JavaScript code via the article content. When an administrator reviews or previews the submitted article in the backend, the malicious script executes in the admin's browser session, allowing the attacker to perform administrative actions such as creating a backdoor administrator account.
Weakness: CWE-79
Which versions are affected by CVE-2026-52520?
How do I fix CVE-2026-52520?
No fix has been published for CVE-2026-52520 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-2026-52520 being exploited?
There is no known exploitation of CVE-2026-52520 in the wild and no public exploit code.
Sources
Also known as GHSA-vcrr-2866-jgp7.