CVE-2018-13818

9.8 criticalEPSS 6.9%

Twig before 2.4.4 allows Server-Side Template Injection (SSTI) via the search search_key parameter. NOTE: the vendor points out that Twig itself is not a web application and states that it is the responsibility of web applications using Twig to properly wrap input to it

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 6.9% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2018-07-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

symfony:twig

References

https://github.com/twigphp/Twig/blob/2.x/CHANGELOG
https://github.com/twigphp/Twig/commit/eddb97148ad779f27e670e1e3f19fb323aedafeb
https://github.com/twigphp/Twig/issues/2743
https://mobile.twitter.com/jameel_nabbo/status/1032593354704515072?s=20
https://www.exploit-db.com/exploits/44102/

Check your stack JSON