CVE-2025-6838 Broken Link Notifier <= 1.3.0 - Authenticated (Contributor+) CSV Injection
Authenticated attackers can inject malicious formulas into exported CSV files, leading to code execution when opened locally.
- 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-2025-6838?
CVE-2025-6838 is a medium-severity code injection vulnerability in apos37 Broken Link Notifier, published on 11 Jul 2025. 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 Broken Link Notifier plugin for WordPress is vulnerable to CSV Injection in all versions up to, and including, 1.3.0 via broken links that are later exported. This makes it possible for authenticated attackers, with Contributor-level access and above, to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.
Weakness: CWE-1236
Which versions are affected by CVE-2025-6838?
How do I fix CVE-2025-6838?
No fix has been published for CVE-2025-6838 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-6838 being exploited?
There is no known exploitation of CVE-2025-6838 in the wild and no public exploit code.
Sources
Also known as GHSA-2rvj-5mf3-jpwf.