CVE-2026-21430 Emlog: CSRF chained with stored XSS leads to ATO
Attackers can force users to post malicious content via CSRF, which combined with stored XSS leads to account takeover in Emlog.
- 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-2026-21430?
CVE-2026-21430 is a high-severity vulnerability in Emlog Emlog, published on 2 Jan 2026. 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
Emlog is an open source website building system. In version 2.5.23, article creation functionality is vulnerable to cross-site request forgery (CSRF). This can lead to a user being forced to post an article with arbitrary, attacker-controlled content. This, when combined with stored cross-site scripting, leads to account takeover. As of time of publication, no known patched versions are available.
Which versions are affected by CVE-2026-21430?
It affects 1 product.
Products include Emlog Emlog.
How do I fix CVE-2026-21430?
No fix has been published for CVE-2026-21430 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21430 being exploited?
There is no known exploitation of CVE-2026-21430 in the wild and no public exploit code.
Other vulnerabilities in Emlog Emlog
Sources
Also known as GHSA-2g2w-vmg7-pq4q.