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No exploitation reportedFix available

CVE-2018-13818

No exploitation reported by the sources we read.

  • Published2018-07-10
  • Fixed in2.4.4
  • WeaknessCWE-94

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2018-07-1014:29CVE publishedNVD

Versions per branch

NVD
Symfony twig
BranchAffectedFixed in
2.4< 2.4.42.4.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Symfony twig to 2.4.4

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-07-10
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-rgff-87c8-rh44

Frequently asked questions

What is CVE-2018-13818?

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

Is CVE-2018-13818 actively exploited?

Active exploitation of CVE-2018-13818 has not been confirmed. Its EPSS score was 6.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-13818?

CVE-2018-13818 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record