Twig is a template language for PHP. Prior to 3.26.0, Compiler::string() does not escape single quotes when a template name from a {% use %} tag is placed inside a PHP single-quoted string literal, allowing a crafted template name to terminate the string and inject arbitrary PHP expressions into the compiled cache file. This issue is fixed in version 3.26.0.
CVSS Score
8.7
EPSS Score
0.006
Published
2026-07-14
Twig is a template language for PHP. Prior to 3.26.0, the Twig sandbox does not prevent a template from consuming CPU, memory, or wall-clock time, even under the strictest allow-list, allowing untrusted templates to cause resource exhaustion. This issue is addressed in version 3.26.0 by documenting that the sandbox does not protect against resource exhaustion.
CVSS Score
7.1
EPSS Score
0.004
Published
2026-07-14
Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.
CVSS Score
5.1
EPSS Score
0.002
Published
2026-07-14
A sandbox information disclosure exists in Twig before 1.38.0 and 2.x before 2.7.0 because, under some circumstances, it is possible to call the __toString() method on an object even if not allowed by the security policy in place.
CVSS Score
3.7
EPSS Score
0.014
Published
2019-03-23
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
CVSS Score
9.8
EPSS Score
0.07
Published
2018-07-10
The displayBlock function Template.php in Sensio Labs Twig before 1.20.0, when Sandbox mode is enabled, allows remote attackers to execute arbitrary code via the _self variable in a template.
CVSS Score
6.8
EPSS Score
0.034
Published
2015-11-06
The default "basic" security setting' in config.php for TWIG webmail 2.7.4 and earlier stores cleartext usernames and passwords in cookies, which could allow attackers to obtain authentication information and gain privileges.
CVSS Score
7.5
EPSS Score
0.011
Published
2001-12-31
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