CVE-2025-24374 Twig fixes a security issue where escaping was missing when using null coalesce operator (??)
Missing output escaping in Twig's null coalesce operator allows attackers to inject malicious scripts, potentially leading to cross-site scripting attacks.
- 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
- Available
What is CVE-2025-24374?
CVE-2025-24374 is a medium-severity cross-site scripting vulnerability in twigphp Twig, published on 29 Jan 2025. 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
Twig is a template language for PHP. When using the ?? operator, output escaping was missing for the expression on the left side of the operator. This vulnerability is fixed in 3.19.0.
Weakness: CWE-74
Which versions are affected by CVE-2025-24374?
2 open source packages ship an affected version, including twig/twig.
| Package | Affected | Fixed in |
|---|---|---|
twig/twig Packagist | From 3.16.0 | 3.19.0 |
twig/twig Packagist | From 3.16.0 | 3.19.0 |
How do I fix CVE-2025-24374?
Upgrade twig/twig to 3.19.0 or later.
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-2025-24374 being exploited?
There is no known exploitation of CVE-2025-24374 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-24374, GHSA-3xg3-cgvq-2xwr, UBUNTU-CVE-2025-24374.